KR102565391B1 - Mobile terminal and operating method thereof - Google Patents

Abstract

According to a mobile terminal according to an embodiment of the present invention, a camera; and a display unit displaying the refrigerator illuminated by the camera; and a control for recognizing the refrigerator displayed on the display unit, generating an augmented reality image that is a virtual image related to the refrigerator, and controlling the refrigerator in response to an input signal for manipulating the augmented reality image. and a controller for generating and transmitting a signal to the refrigerator.

Description

Mobile terminal and its operating method {MOBILE TERMINAL AND OPERATING METHOD THEREOF}

The present invention relates to a mobile terminal and an operating method thereof, and more particularly, to a mobile terminal capable of controlling an electronic device using augmented reality and an operating method thereof.

Functions of mobile terminals are increasingly diversified. According to this trend, recent mobile terminals can display images by applying augmented reality. Augmented Reality (AR) is a technology that overlays a virtual image on a real image or background and displays it as a single image.

The mobile terminal may overlap a virtual image related to the real image on a real image projected by a camera mounted thereon and display the overlapped image. Accordingly, the mobile terminal provides a new and interesting user experience (UX) to the user, and the user can easily obtain information related to the actual image.

Meanwhile, various types of electronic devices that increase user convenience exist in a space where a user lives. A refrigerator, one of these home appliances, provides various functions for user convenience. For example, according to Application No. 10-2016-0001298 (filed on January 05, 2016) filed by the present applicant, the refrigerator door can be selectively made transparent by a user's operation, so that the refrigerator door Disclosed is a refrigerator capable of seeing through the inside of a refrigerator even when the refrigerator is closed. However, in order to execute these functions, the user has to approach the front of the refrigerator and directly knock on the refrigerator compartment door, which is inconvenient.

Therefore, in the present invention, it is intended to propose a method for remotely viewing the inside of a refrigerator through a mobile terminal that is used most by a user and further without directly knocking on the refrigerator based on an augmented reality image provided by the mobile terminal. .

According to an embodiment of the present invention, by knocking on the screen of a mobile terminal instead of a refrigerator, an object of the present invention is to make the door of the refrigerator transparent so that the inside of the refrigerator can be seen through.

In addition, according to an embodiment of the present invention, by knocking on the screen of the mobile terminal instead of the refrigerator, when the refrigerator door becomes transparent, an image of the inside of the refrigerator is provided on the screen of the mobile terminal.

Furthermore, according to an embodiment of the present invention, by knocking on the screen of the mobile terminal instead of the refrigerator, when the refrigerator door becomes transparent, an image of stored items inside the refrigerator is provided on the screen of the mobile terminal.

In order to achieve the above or other objects, a mobile terminal according to an aspect of the present invention recognizes a refrigerator displayed on a display unit, generates an augmented reality image related to the refrigerator, and detects an input signal for manipulating the augmented reality image. and a control unit generating a control signal for controlling the refrigerator and transmitting the generated control signal to the refrigerator.

When detecting a first input signal knocking on the augmented reality image, the control unit transmits a first control signal for making a door of the refrigerator transparent to the refrigerator. According to this, by knocking on the augmented reality image displayed on the screen of the mobile terminal, it is possible to make the refrigerator door transparent and see through the inside of the refrigerator.

The control unit receives an internal image projected through the transparent refrigerator door from the refrigerator, and displays the internal image as a first augmented reality image. According to this, by knocking on the augmented reality image displayed on the screen of the mobile terminal instead of the refrigerator, when the refrigerator door becomes transparent, a transparent image of the inside of the refrigerator may be provided through the screen of the mobile terminal.

The control unit receives an internal image projected through the transparent refrigerator door from the refrigerator, and displays at least one stored item included in the internal image as a first augmented reality image. According to this, by knocking on the augmented reality image displayed on the screen of the mobile terminal instead of the refrigerator, when the refrigerator door becomes transparent, an image of stored goods inside the refrigerator may be provided through the screen of the mobile terminal.

The control unit generates a second control signal for opening the door of the refrigerator and transmits the second control signal to the refrigerator when detecting a second input signal that touches the augmented reality image. According to this, the user can open the refrigerator door by touching the screen of the mobile terminal instead of directly approaching the refrigerator.

In addition, a system including a mobile terminal and a refrigerator according to another aspect of the present invention recognizes a refrigerator displayed on a display unit, generates an augmented reality image related to the refrigerator, and detects an input signal for manipulating the augmented reality image. A mobile terminal generating a control signal for controlling the refrigerator and transmitting the generated control signal to the refrigerator, and a refrigerator performing control corresponding to the control signal received from the mobile terminal.

A control method of a system including a mobile terminal and a refrigerator according to another aspect of the present invention includes recognizing a refrigerator displayed on a screen by the mobile terminal and generating an augmented reality image related to the refrigerator; generating a control signal for controlling the refrigerator in response to detecting an input signal for manipulating an augmented reality image by the mobile terminal and transmitting the generated control signal to the refrigerator; and performing, by the refrigerator, a control corresponding thereto when receiving a control signal from the mobile terminal.

In addition, in a recording medium on which a program for performing a control method of a system including a mobile terminal and a refrigerator is recorded as a computer-readable program according to another aspect of the present invention, the control method of the system includes the mobile terminal displaying the screen on the screen. Recognizing the refrigerator displayed in the image and generating an augmented reality image related to the refrigerator; generating a control signal for controlling the refrigerator in response to the detected input signal for manipulating the augmented reality image by the mobile terminal and transmitting the generated control signal to the refrigerator; and when the refrigerator receives a control signal from the mobile terminal, performing control corresponding thereto.

According to the present invention, by knocking on the augmented reality image displayed on the screen of the mobile terminal instead of the refrigerator, the refrigerator door can be made transparent and the inside of the refrigerator can be seen through.

According to the present invention, by knocking on the augmented reality image displayed on the screen of the mobile terminal instead of the refrigerator, when the refrigerator door becomes transparent, an image of the inside of the refrigerator can be provided through the screen of the mobile terminal.

According to the present invention, by knocking on the augmented reality image displayed on the screen of the mobile terminal instead of the refrigerator, when the refrigerator door becomes transparent, an image of stored items inside the refrigerator may be provided through the screen of the mobile terminal.

In addition, according to the present invention, the user may remotely open the refrigerator door by touching the screen of the mobile terminal instead of directly approaching the refrigerator.

1 is a block diagram for explaining a mobile terminal related to the present invention.
2 is a perspective view showing an example of a glass-type mobile terminal related to another embodiment of the present invention.
3 is a diagram for explaining the configuration of an augmented reality system according to an embodiment of the present invention.
4A to 4C are diagrams illustrating a refrigerator according to an embodiment of the present invention.
5 is a perspective view of a combination of a main door and a sub door of a refrigerator according to an embodiment of the present invention.
6 is a perspective view of a sub door of a refrigerator according to an embodiment of the present invention.
7A to 7C are diagrams for explaining a case in which a mobile terminal executes an augmented reality control mode according to an embodiment of the present invention.
8 is a diagram illustrating a process of executing an augmented reality control mode by a mobile terminal according to an embodiment of the present invention.
9A and 9B are diagrams for explaining an example in which a mobile terminal executes an augmented reality control mode according to an embodiment of the present invention.
10A and 10B are diagrams for explaining another example in which a mobile terminal executes an augmented reality control mode according to an embodiment of the present invention.
11 is a diagram for explaining another example in which a mobile terminal executes an augmented reality control mode according to an embodiment of the present invention.
12 is a diagram illustrating a process of executing an augmented reality control mode by a mobile terminal according to another embodiment of the present invention.
13A and 13B are diagrams for explaining an example in which a mobile terminal executes an augmented reality control mode according to another embodiment of the present invention.
14A and 14B are diagrams for explaining another example in which a mobile terminal executes an augmented reality control mode according to another embodiment of the present invention.

Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings, but the same or similar elements are given the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "unit" for components used in the following description are given or used together in consideration of ease of writing the specification, and do not have meanings or roles that are distinct from each other by themselves.

Mobile terminals described in this specification include mobile phones, smart phones, laptop computers, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), navigation devices, and slate PCs. , tablet PC, ultrabook, wearable device (eg, watch type terminal (smartwatch), glass type terminal (smart glass), HMD (head mounted display)), etc. may be included there is.

However, those skilled in the art can easily recognize that the configurations according to the embodiments described in this specification may be applied to fixed terminals such as digital TVs, desktop computers, digital signage, etc., except when applicable only to mobile terminals. will be.

1 is a block diagram for explaining a mobile terminal related to the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a control unit 180, and a power supply unit 190. ) and the like.

The components shown in FIG. 1 are not essential to implement a mobile terminal, so the mobile terminal described herein may have more or fewer components than those listed above.

More specifically, among the components, the wireless communication unit 110 is between the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and other mobile terminals 100, or between the mobile terminal 100 and an external server. It may include one or more modules enabling wireless communication between Also, the wireless communication unit 110 may include one or more modules that connect the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of a broadcast reception module 111, a mobile communication module 112, a wireless Internet module 113, a short-distance communication module 114, and a location information module 115. .

The input unit 120 includes a camera 121 or video input unit for inputting a video signal, a microphone 122 for inputting an audio signal, or a user input unit 123 for receiving information from a user, for example , a touch key, a push key (mechanical key, etc.). Voice data or image data collected by the input unit 120 may be analyzed and processed as a user's control command.

The sensing unit 140 may include one or more sensors for sensing at least one of information within the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information.

For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity. Sensor (G-sensor), gyroscope sensor (gyroscope sensor), motion sensor (motion sensor), RGB sensor, infrared sensor (IR sensor), finger scan sensor, ultrasonic sensor , an optical sensor (eg, a camera (see 121)), a microphone (see 122), a battery gauge, an environmental sensor (eg, a barometer, a hygrometer, a thermometer, a radiation detection sensor, It may include at least one of a heat detection sensor, a gas detection sensor, etc.), a chemical sensor (eg, an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal disclosed in this specification may combine and utilize information sensed by at least two or more of these sensors.

The output unit 150 is for generating an output related to sight, hearing, or touch, and includes at least one of a display unit 151, a sound output unit 152, a haptic module 153, and an optical output unit 154. can do. The display unit 151 may implement a touch screen by forming a mutual layer structure or integrally with the touch sensor. Such a touch screen may function as a user input unit 123 providing an input interface between the mobile terminal 100 and the user, and provide an output interface between the mobile terminal 100 and the user.

The interface unit 160 serves as a passage for various types of external devices connected to the mobile terminal 100 . The interface unit 160 connects a device equipped with a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, and an identification module. It may include at least one of a port, an audio input/output (I/O) port, a video input/output (I/O) port, and an earphone port. In response to an external device being connected to the interface unit 160, the mobile terminal 100 may perform appropriate control related to the connected external device.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100 . The memory 170 may store a plurality of application programs (application programs or applications) running in the mobile terminal 100 , data for operation of the mobile terminal 100 , and commands. At least some of these application programs may be downloaded from an external server through wireless communication. In addition, at least some of these application programs may exist on the mobile terminal 100 from the time of shipment for the basic functions of the mobile terminal 100 (eg, incoming and outgoing calls, outgoing functions, message receiving, and outgoing functions). Meanwhile, the application program may be stored in the memory 170, installed on the mobile terminal 100, and driven by the controller 180 to perform an operation (or function) of the mobile terminal.

The controller 180 controls general operations of the mobile terminal 100 in addition to operations related to the application program. The control unit 180 may provide or process appropriate information or functions to the user by processing signals, data, information, etc. input or output through the components described above or by running an application program stored in the memory 170.

In addition, the controller 180 may control at least some of the components discussed in conjunction with FIG. 1 in order to drive an application program stored in the memory 170 . Furthermore, the controller 180 may combine and operate at least two or more of the components included in the mobile terminal 100 to drive the application program.

Under the control of the controller 180, the power supply unit 190 receives external power and internal power and supplies power to each component included in the mobile terminal 100. The power supply unit 190 includes a battery, and the battery may be a built-in battery or a replaceable battery.

Hereinafter, prior to examining various embodiments implemented through the mobile terminal 100 described above, the above-listed components will be examined in more detail with reference to FIG. 1 .

First, looking at the wireless communication unit 110, the broadcast reception module 111 of the wireless communication unit 110 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 may be provided in the mobile terminal 100 to receive simultaneous broadcasting of at least two broadcast channels or to switch broadcast channels.

The broadcast management server may refer to a server that generates and transmits a broadcast signal and/or broadcast-related information or a server that receives and transmits a previously generated broadcast signal and/or broadcast-related information to a terminal. The broadcast signal includes not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a TV broadcast signal or a broadcast signal in which a data broadcast signal is combined with a radio broadcast signal.

The broadcast signal may be encoded according to at least one of technical standards for transmission and reception of digital broadcast signals (or a broadcast method, eg, ISO, IEC, DVB, ATSC, etc.), and the broadcast reception module 111 The digital broadcasting signal can be received using a method suitable for technical specifications determined by technical standards.

The broadcast related information may mean 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 can be received by the mobile communication module 112.

The broadcast-related information may exist in various forms, such as, for example, an Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or an Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H). Broadcast signals received through the broadcast receiving module 111 and/or broadcast related information may be stored in the memory 160 .

The mobile communication module 112 complies with technical standards or communication methods for mobile communication (eg, Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (CDMA2000), EV) -DO(Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), WCDMA(Wideband CDMA), HSDPA(High Speed Downlink Packet Access), HSUPA(High Speed Uplink Packet Access), LTE(Long Term Evolution), LTE-A (Long Term Evolution-Advanced), etc.) to transmit and receive radio signals with at least one of a base station, an external terminal, and a server on a mobile communication network.

The wireless signal may include a voice call signal, a video call signal, or various types of data according to text/multimedia message transmission/reception.

The wireless Internet module 113 refers to a module for wireless Internet access, and may be built into or external to the mobile terminal 100 . The wireless Internet module 113 is configured to transmit and receive radio signals in a communication network according to wireless Internet technologies.

Wireless Internet technologies include, for example, WLAN (Wireless LAN), Wi-Fi (Wireless-Fidelity), Wi-Fi (Wireless Fidelity) Direct, DLNA (Digital Living Network Alliance), WiBro (Wireless Broadband), WiMAX (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), HSUPA (High Speed Uplink Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), etc., and the wireless Internet module ( 113) transmits and receives data according to at least one wireless Internet technology within a range including Internet technologies not listed above.

From the viewpoint that wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE, LTE-A, etc. is made through a mobile communication network, the wireless Internet module (113) performing wireless Internet access through the mobile communication network ) may be understood as a kind of the mobile communication module 112.

The short-range communication module 114 is for short-range communication, and includes Bluetooth™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and NFC. Near Field Communication (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and wireless USB (Wireless Universal Serial Bus) technology may be used to support short-distance communication. The short-range communication module 114 may be used between the mobile terminal 100 and a wireless communication system, between the mobile terminal 100 and other mobile terminals 100, or between the mobile terminal 100 through wireless area networks. ) and a network where another mobile terminal 100 (or an external server) is located. The local area wireless communication network may be a local area wireless personal area network (Wireless Personal Area Networks).

Here, the other mobile terminal 100 is a wearable device capable of exchanging (or interlocking) data with the mobile terminal 100 according to the present invention (for example, a smart watch), smart glasses (smart glass) or HMD (head mounted display). The short-distance communication module 114 may detect (or recognize) a wearable device capable of communicating with the mobile terminal 100 around the mobile terminal 100 . Furthermore, if the detected wearable device is a device authorized to communicate with the mobile terminal 100 according to the present invention, the controller 180 transmits at least a portion of data processed by the mobile terminal 100 to the short-range communication module ( 114) can be transmitted to the wearable device. Accordingly, the user of the wearable device may use data processed by the mobile terminal 100 through the wearable device. For example, according to this, when a phone call is received in the mobile terminal 100, the user makes a phone call through the wearable device, or when a message is received in the mobile terminal 100, the user receives the received message through the wearable device. It is possible to check the message.

The location information module 115 is a module for acquiring the location (or current location) of the mobile terminal, and representative examples thereof include a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when a mobile terminal utilizes a GPS module, the location of the mobile terminal can be obtained using signals transmitted from GPS satellites.

As another example, when the mobile terminal utilizes the Wi-Fi module, the location of the mobile terminal may be obtained based on information of the Wi-Fi module and a wireless access point (AP) that transmits or receives a wireless signal. If necessary, the location information module 115 may perform any function among other modules of the wireless communication unit 110 to obtain data on the location of the mobile terminal in substitution or addition. The location information module 115 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or acquires the location of the mobile terminal.

Next, the input unit 120 is for inputting video information (or signals), audio information (or signals), data, or information input from a user. For inputting video information, the mobile terminal 100 has one Alternatively, a plurality of cameras 121 may be provided. The camera 121 processes an image frame such as a still image or a moving image obtained by an image sensor in a video call mode or a photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170 . Meanwhile, the plurality of cameras 121 provided in the mobile terminal 100 may be arranged to form a matrix structure, and through the cameras 121 forming the matrix structure, various angles or focal points may be provided to the mobile terminal 100. A plurality of image information having may be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure to obtain left and right images for realizing a stereoscopic image.

The microphone 122 processes external sound signals into electrical voice data. The processed voice data may be utilized in various ways according to the function (or application program being executed) being performed in the mobile terminal 100 . Meanwhile, various noise cancellation algorithms for removing noise generated in the process of receiving an external sound signal may be implemented in the microphone 122 .

The user input unit 123 is for receiving information from a user. When information is input through the user input unit 123, the control unit 180 can control the operation of the mobile terminal 100 to correspond to the input information. . Such a user input unit 123 is a mechanical input means (or a mechanical key, for example, buttons located on the front/back or side of the mobile terminal 100, a dome switch, a jog wheel, jog switch, etc.) and touch input means. As an example, the touch input means consists of a virtual key, soft key, or visual key displayed on a touch screen through software processing, or a part other than the touch screen. It can be made of a touch key (touch key) disposed on. On the other hand, the virtual key or visual key can be displayed on the touch screen while having various forms, for example, graphic (graphic), text (text), icon (icon), video (video) or these may be made of a combination of

Meanwhile, the sensing unit 140 senses at least one of information within the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information, and generates a sensing signal corresponding thereto. Based on these sensing signals, the controller 180 may control driving or operation of the mobile terminal 100 or may process data related to applications installed in the mobile terminal 100, perform functions or operations. Representative sensors among various sensors that may be included in the sensing unit 140 will be described in more detail.

First, the proximity sensor 141 refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object existing nearby without mechanical contact by using the force of an electromagnetic field or infrared rays. The proximity sensor 141 may be disposed in an inner area of the mobile terminal covered by the touch screen described above or in the vicinity of the touch screen.

Examples of the proximity sensor 141 include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitance type proximity sensor, a magnetic type proximity sensor, an infrared proximity sensor, and the like. If the touch screen is a capacitive type, the proximity sensor 141 may be configured to detect the proximity of a conductive object as a change in electric field according to the proximity of the object. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

On the other hand, for convenience of description, an action of approaching a touch screen without contacting an object to recognize that the object is located on the touch screen is referred to as a "proximity touch", and the touch An act of actually touching an object on a screen is called a "contact touch". The location at which an object is proximity-touched on the touch screen means a location at which the object corresponds vertically to the touch screen when the object is proximity-touched. The proximity sensor 141 may detect a proximity touch and a proximity touch pattern (eg, proximity touch distance, proximity touch direction, proximity touch speed, proximity touch time, proximity touch position, proximity touch movement state, etc.) there is.

Meanwhile, as described above, the controller 180 processes data (or information) corresponding to the proximity touch operation and proximity touch pattern detected through the proximity sensor 141, and furthermore, visual information corresponding to the processed data. It can be output on the touch screen. Furthermore, the controller 180 may control the mobile terminal 100 to process different operations or data (or information) depending on whether a touch to the same point on the touch screen is a proximity touch or a contact touch. .

The touch sensor detects a touch (or touch input) applied to the touch screen (or the display unit 151) using at least one of various touch methods such as a resistive film method, a capacitive method, an infrared method, an ultrasonic method, and a magnetic field method. detect

As an example, the touch sensor may be configured to convert a change in pressure applied to a specific part of the touch screen or capacitance generated in a specific part into an electrical input signal. The touch sensor may be configured to detect a location, area, pressure upon touch, capacitance upon touch, and the like, at which a touch object that applies a touch to the touch screen is touched on the touch sensor. Here, the touch object is an object that applies a touch to the touch sensor, and may be, for example, a finger, a touch pen, a stylus pen, or a pointer.

As such, when there is a touch input to the touch sensor, the corresponding signal(s) is sent to the touch controller. The touch controller processes the signal(s) and then transmits corresponding data to the controller 180. Thus, the controller 180 can know which area of the display unit 151 has been touched. Here, the touch controller may be a component separate from the controller 180 or may be the controller 180 itself.

Meanwhile, the controller 180 may perform different controls or the same control according to the type of the touch object that touches the touch screen (or a touch key provided other than the touch screen). Whether to perform different controls or the same control according to the type of the touch object may be determined according to an operating state of the mobile terminal 100 or an application program currently being executed.

On the other hand, the touch sensor and proximity sensor described above are independently or combined, short (or tap) touch, long touch, multi-touch, drag touch on the touch screen ), flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, etc. Touch can be sensed.

The ultrasonic sensor may recognize location information of a sensing object by using ultrasonic waves. Meanwhile, the controller 180 may calculate the location of the wave generating source through information detected by the optical sensor and the plurality of ultrasonic sensors. The position of the wave generating source can be calculated using the property that light is much faster than ultrasonic waves, that is, the time for light to reach the optical sensor is much faster than the time for ultrasonic waves to reach the ultrasonic sensor. More specifically, the location of the wave generating source may be calculated by using light as a reference signal and a time difference between the arrival time of ultrasonic waves.

Meanwhile, looking at the configuration of the input unit 120, the camera 121 includes at least one of a camera sensor (eg, CCD, CMOS, etc.), a photo sensor (or image sensor), and a laser sensor.

The camera 121 and the laser sensor may be combined with each other to detect a touch of a sensing target for a 3D stereoscopic image. A photo sensor may be stacked on a display device, and the photo sensor is configured to scan a motion of a sensing target close to the touch screen. More specifically, the photo sensor scans the content placed on the photo sensor by mounting photo diodes and transistors (TRs) in rows/columns and using electrical signals that change according to the amount of light applied to the photo diodes. That is, the photo sensor calculates the coordinates of the sensing object according to the change in light, and through this, the location information of the sensing object can be obtained.

The display unit 151 displays (outputs) information processed by the mobile terminal 100 . For example, the display unit 151 may display execution screen information of an application program driven in the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to such execution screen information. .

Also, the display unit 151 may be configured as a 3D display unit that displays a 3D image. A 3D display method such as a stereoscopic method (glasses method), an auto stereoscopic method (non-glasses method), or a projection method (holographic method) may be applied to the 3D display unit.

In general, a 3D stereoscopic image is composed of a left image (image for the left eye) and a right image (image for the right eye). According to the method of combining the left and right images into a 3D stereoscopic image, top-down method in which the left and right images are arranged up and down in one frame, left and right images in one frame L-to-R (left-to-right, side by side) method for arranging left and right images, checker board method for arranging pieces of left and right images in tile form, and left and right images in units of columns Alternatively, it is divided into an interlaced method that alternately arranges rows, and a time-sequential, frame-by-frame method that alternately displays a left image and a right image by time.

Also, the 3D thumbnail image may be generated as a single image by generating left and right image thumbnails from the left and right images of the original image frame, respectively, and combining them. In general, a thumbnail refers to a reduced image or a reduced still image. The generated left and right image thumbnails are displayed with a left and right distance difference on the screen by a depth corresponding to the parallax between the left and right images, thereby representing a three-dimensional sense of space.

A left image and a right image necessary for implementing a 3D stereoscopic image may be displayed on a stereoscopic display unit by a stereoscopic processing unit. The stereoscopic processing unit receives 3D images (images at a reference point and images at an extended point of view) and sets left and right images therefrom, or receives 2D images and converts them into left and right images.

The audio output unit 152 may output audio data received from the wireless communication unit 110 or stored in the memory 170 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 also outputs sound signals related to functions performed by the mobile terminal 100 (eg, call signal reception sound, message reception sound, etc.). The sound output unit 152 may include a receiver, a speaker, a buzzer, and the like.

The haptic module 153 generates various tactile effects that a user can feel. A representative example of the tactile effect generated by the haptic module 153 may be vibration. The strength and pattern of the vibration generated by the haptic module 153 may be controlled by a user's selection or a setting of a controller. For example, the haptic module 153 may synthesize and output different vibrations or sequentially output them.

In addition to vibration, the haptic module 153 responds to stimuli such as an array of pins that move vertically with respect to the contact skin surface, air blowing force or suction force through a nozzle or suction port, rubbing against the skin surface, electrode contact, and electrostatic force. It is possible to generate various tactile effects, such as the effect of heat absorption and the effect of reproducing the feeling of coolness and warmth using an element capable of absorbing heat or generating heat.

The haptic module 153 not only transmits a tactile effect through direct contact, but also can be implemented so that a user can feel a tactile effect through a muscle sense such as a finger or an arm. Two or more haptic modules 153 may be provided according to the configuration of the mobile terminal 100 .

The light output unit 154 outputs a signal for notifying occurrence of an event using light from a light source of the mobile terminal 100 . Examples of events occurring in the mobile terminal 100 may include message reception, call signal reception, missed calls, alarms, schedule notifications, e-mail reception, and information reception through applications.

A signal output from the light output unit 154 is implemented when the mobile terminal emits light of a single color or multiple colors to the front or back side. The signal output may be terminated when the mobile terminal detects the user's confirmation of the event.

The interface unit 160 serves as a passage for all external devices connected to the mobile terminal 100 . The interface unit 160 receives data from an external device or receives power and transmits it to each component inside the mobile terminal 100, or transmits data inside the mobile terminal 100 to an external device. For example, a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, and a port for connecting a device having an identification module. The interface unit 160 may include an audio I/O (Input/Output) port, a video I/O (Input/Output) port, an earphone port, and the like.

On the other hand, the identification module is a chip that stores various types of information for authenticating the use authority of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identity module (SIM), and universal user authentication. module (universal subscriber identity module; USIM) and the like. A device equipped with an identification module (hereinafter referred to as 'identification device') may be manufactured in the form of a smart card. Accordingly, the identification device may be connected to the terminal 100 through the interface unit 160 .

In addition, the interface unit 160 becomes 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 a user inputs power from the cradle. It can be a passage through which various command signals are transmitted to the mobile terminal 100 . Various command signals or the power input from the cradle may operate as a signal for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The memory 170 may store programs for operation of the controller 180 and may temporarily store input/output data (eg, phonebook, message, still image, video, etc.). The memory 170 may store data related to vibration and sound of various patterns output when a touch is input on the touch screen.

The memory 170 may be a flash memory type, a hard disk type, a solid state disk type, a silicon disk drive type, or a multimedia card micro type. ), card-type memory (eg SD or XD memory, etc.), RAM (random access memory; RAM), SRAM (static random access memory), ROM (read-only memory; ROM), EEPROM (electrically erasable programmable read -only memory), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk. The mobile terminal 100 may be operated in relation to a web storage that performs a storage function of the memory 170 on the Internet.

Meanwhile, as described above, the control unit 180 controls operations related to applications and general operations of the mobile terminal 100 in general. For example, if the state of the mobile terminal satisfies a set condition, the controller 180 may execute or release a locked state that restricts a user's control command input to applications.

In addition, the controller 180 may perform control and processing related to voice calls, data communications, video calls, etc., or perform pattern recognition processing capable of recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively. can Furthermore, the control unit 180 may control any one or a combination of a plurality of components described above in order to implement various embodiments described below on the mobile terminal 100 according to the present invention.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for the operation of each component. The power supply unit 190 includes a battery, and the battery may be a built-in battery capable of being charged, or may be detachably coupled to the terminal body for charging.

In addition, the power supply 190 may have a connection port, and the connection port may be configured as an example of an interface 160 to which an external charger that supplies power for battery charging is electrically connected.

As another example, the power supply unit 190 may charge the battery in a wireless manner without using the connection port. In this case, the power supply unit 190 uses at least one of an inductive coupling method based on magnetic induction from an external wireless power transmitter or a magnetic resonance coupling method based on electromagnetic resonance. power can be delivered.

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

2 is a perspective view showing an example of a glass-type mobile terminal 400 related to another embodiment of the present invention.

The glass-type mobile terminal 400 is configured to be worn on the head of the human body, and may include a frame part (case, housing, etc.) for this purpose. The frame portion may be formed of a flexible material so as to be easily worn. In this figure, it is exemplified that the frame unit includes a first frame 401 and a second frame 402 made of different materials. In general, the mobile terminal 400 may include features of the mobile terminal 100 of FIG. 1 or similar features thereto.

The frame part is supported on the head and provides a space in which various parts are mounted. As shown, electronic components such as a control module 480 and a sound output module 452 may be mounted on the frame unit. In addition, a lens 403 covering at least one of the left eye and the right eye may be detachably mounted on the frame unit.

The control module 480 controls various electronic components included in the mobile terminal 400 . The control module 480 may be understood as a component corresponding to the controller 180 described above. In this figure, it is exemplified that the control module 480 is installed on the frame part on one side of the head. However, the location of the control module 480 is not limited thereto.

The display unit 451 may be implemented in the form of a head mounted display (HMD). The HMD type refers to a display method that is mounted on the head and shows an image directly in front of the user's eyes. When the user wears the glass-type mobile terminal 400, the display unit 451 may be disposed to correspond to at least one of the left eye and the right eye so as to provide an image directly in front of the user's eyes. In this drawing, it is exemplified that the display unit 451 is located in a portion corresponding to the right eye of the user so that an image can be output toward the user's right eye.

The display unit 451 may project an image onto the user's eyes using a prism. In addition, the prism may be light-transmitting so that the user can see the projected image and the general field of view (a range of the user's eyes) together.

As such, an image output through the display unit 451 may be displayed overlapping with a normal field of view. The mobile terminal 400 may provide Augmented Reality (AR), in which a virtual image is superimposed on a real image or a background and displayed as a single image, using the characteristics of the display.

The camera 421 is disposed adjacent to at least one of the left eye and the right eye, and is configured to capture a forward image. Since the camera 421 is positioned adjacent to the eye, the camera 421 may acquire a scene viewed by the user as an image.

In this drawing, the camera 421 is provided in the control module 480 as an example, but is not necessarily limited thereto. The camera 421 may be installed in the frame unit, or may be provided in plural to obtain a stereoscopic image.

The glass-type mobile terminal 400 may include user input units 423a and 423b manipulated to receive a control command. The user input units 423a and 423b may employ any tactile manner, such as a touch or a push, in which a user manipulates them while experiencing a tactile feeling. In this drawing, it is exemplified that the frame unit and the control module 480 are provided with push and touch input user input units 423a and 423b, respectively.

In addition, the glass-type mobile terminal 400 may include a microphone (not shown) that receives sound and processes it into electrical voice data, and a sound output module 452 that outputs sound. The sound output module 452 may transmit sound using a general sound output method or a bone conduction method. When the sound output module 452 is implemented in a bone conduction manner, when the user wears the mobile terminal 400, the sound output module 452 adheres to the head and transmits sound by vibrating the skull.

Next, a communication system that can be implemented through the mobile terminal 100 according to the present invention will be described.

First, communication systems may use different air interfaces and/or physical layers. For example, air interfaces usable by the communication system include Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), and Code Division Multiple Access (CDMA). ), Universal Mobile Telecommunications Systems (UMTS) (in particular, Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A)), Global System for Mobile Communications (GSM), etc. this may be included.

Hereinafter, for convenience of description, the description will be limited to CDMA. However, it is obvious that the present invention can be applied to all communication systems including orthogonal frequency division multiplexing (OFDM) wireless communication systems as well as CDMA wireless communication systems.

The CDMA wireless communication system includes at least one terminal 100, at least one base station (Base Station, BS (which may also be referred to as Node B or Evolved Node B)), and at least one base station control unit (Base Station Controllers, BSCs). ), and a mobile switching center (MSC). The MSC is configured to interface with the Public Switched Telephone Network (PSTN) and BSCs. BSCs may be connected in pairs with a BS through a backhaul line. The backhaul line may be provided according to at least one of E1/T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL or xDSL. Thus, a plurality of BSCs can be included in a CDMA wireless communication system.

Each of the plurality of BSs may include at least one sector, and each sector may include an omni-directional antenna or an antenna pointing in a specific direction radially from the BS. Also, each sector may include two or more antennas of various types. Each BS may be configured to support multiple frequency assignments, each of which may have a specific spectrum (eg, 1.25 MHz, 5 MHz, etc.).

The intersection of sector and frequency assignment may be referred to as a CDMA channel. BSs may be referred to as Base Station Transceiver Subsystems (BTSs). In this case, one BSC and at least one BS may be collectively referred to as a "base station". A base station may also represent a "cell site". Alternatively, each of a plurality of sectors for a specific BS may be referred to as a plurality of cell sites.

A broadcasting transmitter (BT) transmits a broadcasting signal to the terminals 100 operating within the system. The broadcast reception module 111 shown in FIG. 1 is provided in the terminal 100 to receive a broadcast signal transmitted by BT.

In addition, a global positioning system (GPS) for determining the location of the mobile terminal 100 may be linked to the CDMA wireless communication system. The satellite 300 helps determine the location of the mobile terminal 100 . Useful location information may be obtained by less than or equal to two or more satellites. Here, the location of the mobile terminal 100 can be tracked using not only the GPS tracking technology but also all technologies capable of tracking the location. Also, at least one of the GPS satellites may optionally or additionally be responsible for satellite DMB transmission.

The location information module 115 provided in the mobile terminal is for detecting, calculating, or identifying the location of the mobile terminal, and representative examples may include a GPS (Global Position System) module and a WiFi (Wireless Fidelity) module. If necessary, the location information module 115 may perform any function among other modules of the wireless communication unit 110 to obtain data on the location of the mobile terminal in substitution or addition.

The GPS module 115 calculates distance information and accurate time information from three or more satellites, and then applies trigonometry to the calculated information to accurately calculate 3-dimensional current location information according to latitude, longitude, and altitude. can do. Currently, a method of calculating location and time information using three satellites and correcting an error in the calculated location and time information using another satellite is widely used. In addition, the GPS module 115 may calculate speed information by continuously calculating the current location in real time. However, it is difficult to accurately measure the position of a mobile terminal using a GPS module in a shaded area of a satellite signal, such as indoors. Accordingly, in order to compensate for GPS positioning, a WiFi Positioning System (WPS) may be utilized.

A WiFi Positioning System (WPS) is a mobile terminal 100 using a WiFi module provided in the mobile terminal 100 and a wireless AP (Wireless Access Point) that transmits or receives a wireless signal with the WiFi module. As a technology for tracking the location of, it means a location positioning technology based on WLAN (Wireless Local Area Network) using WiFi.

The Wi-Fi location tracking system may include a Wi-Fi positioning server, a mobile terminal 100, a wireless AP connected to the mobile terminal 100, and a database storing arbitrary wireless AP information.

The mobile terminal 100 accessing the wireless AP may transmit a location information request message to a Wi-Fi location determination server.

The Wi-Fi location determination server extracts information of a wireless AP connected to the mobile terminal 100 based on a location information request message (or signal) of the mobile terminal 100 . Information of the wireless AP connected to the mobile terminal 100 may be transmitted to the Wi-Fi positioning server through the mobile terminal 100 or transmitted from the wireless AP to the Wi-Fi positioning server.

Based on the location information request message of the mobile terminal 100, the information of the wireless AP extracted is MAC Address, SSID (Service Set IDentification), RSSI (Received Signal Strength Indicator), RSRP (Reference Signal Received Power), RSRQ ( Reference Signal Received Quality), channel information, privacy, network type, signal strength (Signal Strength), and noise strength (Noise Strength).

As described above, the Wi-Fi positioning server may receive information on the wireless AP connected to the mobile terminal 100 and extract wireless AP information corresponding to the wireless AP the mobile terminal is accessing from a pre-built database. At this time, the information of arbitrary wireless APs stored in the database includes MAC address, SSID, channel information, privacy, network type, latitude and longitude coordinates of the wireless AP, building name where the wireless AP is located, number of floors, indoor detailed location information (GPS coordinates) available), AP owner's address, phone number, and the like. In this case, in order to remove mobile APs or wireless APs provided using illegal MAC addresses during the positioning process, the Wi-Fi positioning server may extract only a predetermined number of wireless AP information in order of highest RSSI.

Thereafter, the Wi-Fi positioning server may extract (or analyze) location information of the mobile terminal 100 using at least one wireless AP information extracted from the database. The location information of the mobile terminal 100 is extracted (or analyzed) by comparing the included information with the received wireless AP information.

As a method for extracting (or analyzing) location information of the mobile terminal 100, a Cell-ID method, a fingerprint method, a triangulation method, and a landmark method may be utilized.

The Cell-ID method is a method of determining the location of a wireless AP having the strongest signal strength among information of surrounding wireless APs collected by a mobile terminal as the location of the mobile terminal. It has the advantages of simple implementation, no extra cost, and quick acquisition of location information. However, it has the disadvantage of low positioning accuracy when the installed density of wireless APs is low.

The fingerprint method is a method of selecting a reference location in a service area, collecting signal strength information, and estimating a location through signal strength information transmitted from a mobile terminal based on the collected information. In order to use the fingerprint method, it is necessary to make a database of propagation characteristics in advance.

The triangulation method is a method of calculating the position of a mobile terminal based on the coordinates of at least three wireless APs and the distance between the mobile terminal. In order to measure the distance between a mobile terminal and a wireless AP, signal strength is converted into distance information, or the time at which a wireless signal is transmitted (Time of Arrival, ToA) or the time difference between a signal is transmitted (Time Difference of Arrival, TDoA) , angle of arrival (AoA) at which the signal is transmitted, and the like can be used.

The landmark method is a method of measuring the location of a mobile terminal using a landmark transmitter that knows the location.

In addition to the listed methods, various algorithms may be used as a method for extracting (or analyzing) location information of a mobile terminal.

The extracted location information of the mobile terminal 100 is transmitted to the mobile terminal 100 through the Wi-Fi positioning server, so that the mobile terminal 100 can acquire the location information.

The mobile terminal 100 can acquire location information by being connected to at least one wireless AP. In this case, the number of wireless APs required to acquire the location information of the mobile terminal 100 may be variously changed according to the wireless communication environment in which the mobile terminal 100 is located.

1, the mobile terminal according to the present invention includes Bluetooth™, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), wireless USB (Wireless Universal Serial Bus), and other short-distance communication technologies may be applied.

Among them, the NFC module provided in the mobile terminal supports non-contact short-range wireless communication between terminals at a distance of around 10 cm. The NFC module may operate in one of card mode, reader mode, and P2P mode. In order for the NFC module to operate in a card mode, the mobile terminal 100 may further include a security module for storing card information. Here, the security module may be a physical medium such as a universal integrated circuit card (UICC) (eg, a subscriber identification module (SIM) or a universal SIM (USIM)), a secure micro SD, and a sticker, or a logical medium embedded in a mobile terminal ( For example, it may be an embedded secure element (SE). Data exchange based on SWP (Single Wire Protocol) may be performed between the NFC module and the security module.

When the NFC module is operated in a card mode, the mobile terminal can transfer stored card information to the outside like a conventional IC card. Specifically, when a mobile terminal storing card information of a payment card, such as a credit card or bus card, is brought close to a fare payment machine, mobile short-distance payment can be processed, and the mobile terminal storing card information of an access card is authorized for access. When approaching the machine, access approval process may be started. Cards such as credit cards, transportation cards, and access cards are loaded in the security module in the form of an applet, and the security module can store card information about the loaded card. Here, the card information of the payment card may be at least one of a card number, balance, and usage history, and the card information of the access card may be at least one of the user's name, number (eg, the user's student number or employee number), and access history. can be one

When the NFC module operates in a reader mode, the mobile terminal can read data from an external tag. At this time, data received by the mobile terminal from the tag may be coded in an NFC Data Exchange Format (NFC Data Exchange Format) defined by the NFC forum. In addition, the NFC Forum defines 4 record types. Specifically, the NFC forum defines four RTDs (Record Type Definitions) such as Smart Poster, Text, Uniform Resource Identifier (URI), and General Control. When the data received from the tag is a smart poster type, the controller executes a browser (eg, an internet browser), and when the data received from the tag is a text type, the controller executes a text viewer. When the data received from the tag is a URI type, the control unit executes a browser or makes a phone call, and when the data received from the tag is a general control type, it can execute an appropriate operation according to the control content.

When the NFC module is operated in a peer-to-peer (P2P) mode, a mobile terminal can perform P2P communication with another mobile terminal. In this case, Logical Link Control Protocol (LLCP) may be applied to P2P communication. A connection may be created between a mobile terminal and another mobile terminal for P2P communication. At this time, the created connection can be divided into a connectionless mode in which one packet is exchanged and terminated, and a connection-oriented mode in which packets are continuously exchanged. Through P2P communication, data such as electronic business cards, contact information, digital photos, URLs, and setup parameters for Bluetooth and Wi-Fi connections can be exchanged. However, since the usable distance of NFC communication is short, the P2P mode can be effectively used for exchanging small-sized data.

Hereinafter, embodiments related to a control method of an electronic device using an augmented reality image, which can be implemented in the mobile terminal 100 configured as described above, will be described with reference to the accompanying drawings. It is apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

3 is a diagram for explaining the configuration of an augmented reality system according to an embodiment of the present invention.

An augmented reality system according to an embodiment of the present invention may include a mobile terminal 100 , an electronic device 200 and a server 300 .

An operation mode of the mobile terminal 100 may include an augmented reality mode. The augmented reality mode may be a mode in which a virtual image is superimposed on a real image and displayed as a single image. Here, the virtual image may be related to a real image or may include information about a real image.

The mobile terminal 100 may enter the augmented reality mode according to the execution of an application installed therein. When entering the augmented reality mode, the mobile terminal 100 may automatically display a preview image acquired through the camera 121 on the display unit 151 .

The mobile terminal 100 can identify the electronic device 200 through the preview image and provide information about the identified electronic device 200 .

In one embodiment, the controller 180 of the mobile terminal 100 may identify the electronic device 200 using an image recognition technique. The controller 180 of the mobile terminal 100 may identify the electronic device 200 based on the preview image of the electronic device 200 obtained through the camera 121 .

The preview image may be an image that previews an image to be photographed through the camera 121 . The control unit 180 acquires an exterior image of the electronic device 200 included in the preview image, and stores the acquired exterior image of the electronic device 200 in the memory 170 of the mobile terminal 100. can be compared with

When the external image of the electronic device 200 obtained as a result of the comparison is stored in the memory 170, the controller 180 may extract information about the stored electronic device. The information about the electronic device may be one or more of a name of the electronic device, a model name of the electronic device, part information provided inside the electronic device, image information of the part, and location information of the part in the electronic device.

As a result of the comparison, if the obtained exterior image of the electronic device 200 is not stored in the memory 170, the controller 180 sends the information to the server 300 including the database of the electronic device through the wireless Internet module 113. can connect The server 300 may identify the electronic device 200 through a comparison between the exterior image of the electronic device 200 and the stored exterior images of the electronic device from the database.

The controller 180 may receive information about the electronic device 200 identified by the server 300 .

In another embodiment, the controller 180 may identify the electronic device 200 based on an identifier attached to the electronic device 200 . The identifier may be any one of barcode, QR code, and RFID, and may include information for identifying the electronic device 200 .

The controller 180 may identify the electronic device 200 by recognizing an identifier included in a preview image obtained through the camera 121 .

In another embodiment, the controller 180 may identify the electronic device 200 based on location information of the mobile terminal 100 . Specifically, the controller 180 can identify the electronic device 200 displayed in the preview image through comparison between location information of the mobile terminal 100 and location information of the electronic device 200 .

It is preferable to use GPS information as location information, but it may be difficult to obtain GPS information indoors in many cases. Accordingly, the controller 180 may utilize a Wi-Fi Position Service (WPS) method using wireless Internet, a method using Bluetooth, a method using RFID, and the like.

The short-range communication module 114 of the mobile terminal 100 may perform short-range wireless communication with the electronic device 200 . To this end, the electronic device 200 may also include a short-range communication module.

The electronic device 200 may be any one of air conditioners, refrigerators, washing machines, TVs, microwave ovens, vacuum cleaners, and airport robots used in airports. However, the present invention is not limited thereto, and the electronic device 200 may include all types of devices that increase user convenience.

The server 300 may exchange information with the mobile terminal 100 through the Internet.

In some cases, the server 300 may be connected to the electronic device 200 through wireless communication. In this case, the electronic device 200 may also include a wireless Internet module.

Hereinafter, the configuration of the refrigerator 1 among the above electronic devices 200 will be first described.

4A to 4C are diagrams illustrating a refrigerator according to an embodiment of the present invention.

Specifically, FIG. 4A is a perspective view of the refrigerator, FIG. 4B is a front view of the refrigerator in which the main door is opened, and FIG. 4C is a perspective view of the refrigerator in which the sub door is opened.

A refrigerator may be a home appliance that stores food at a low temperature in an internal storage space shielded by a door. To this end, the refrigerator may generate cold air through heat exchange with a refrigerant circulating in a refrigerating cycle, and may cool an internal storage space using the generated cold air.

As shown in the drawings, the refrigerator 1 according to the embodiment of the present invention may have an outer appearance formed by a cabinet 10 forming a storage space and a door opening and closing the storage space.

The inside of the cabinet 10 may be partitioned vertically by the barrier 11 . In this case, the refrigerating compartment 12 may be formed in the upper part of the cabinet 10 and the freezing compartment 13 may be formed in the lower part of the cabinet 10 .

Various storage members 12a such as shelves, drawers, or baskets may be provided inside the refrigerating chamber 12 . The storage member 12a may be drawn in and out when the refrigerating compartment door 20 is open, if necessary.

A lighting unit 85 for illuminating the refrigerating compartment 12 may be provided in the refrigerating compartment 12 . Such a lighting unit 85 may also be disposed in the freezing chamber 13, and may be disposed anywhere on the inner wall surface of the refrigerator according to embodiments.

Inside the freezing chamber 13, a drawer-shaped freezing chamber storage member 13a may be mainly disposed. The freezing chamber storage member 13a may be drawn in and out in conjunction with the opening of the freezing chamber door 30 .

The door may be composed of a refrigerating compartment door 20 and a freezing compartment door 30 .

The refrigerating compartment door 20 may open and close the front opening of the refrigerating compartment 12 by pivoting, and the freezing compartment door 30 may open and close the front opening of the freezing compartment 13 by pivoting. In this case, a pair of left and right refrigerating compartment doors 20 and freezing compartment doors 30 are provided, and are configured to shield the refrigerating compartment 12 and the freezing compartment 13, respectively. Depending on the embodiment, the freezing chamber door 30 may be drawn out in a drawer manner, and may be configured to open and close the freezing chamber 13 by pulling in and out.

The refrigerating compartment door 20 and the freezing compartment door 30 form an overall exterior when viewed from the front, and the exterior may be formed of a metal material so that the entire refrigerator 1 has a texture of the metal material. Depending on the embodiment, a dispenser for dispensing water or ice may be provided at the refrigerator compartment door 20 .

On the other hand, in the embodiment of the present invention, a bottom freeze type refrigerator having a freezer compartment 13 below is described as an example of a refrigerator to which a pair of doors are rotated to open and close a space, to which a French type door is applied. , The present invention can be applied to all types of refrigerators provided with doors regardless of the shape of the refrigerator.

Among the pair of refrigerating compartment doors 20, the right refrigerating compartment door 20 may be configured to be double-opened. Specifically, the refrigerating compartment door 20 located on the right side includes a main door 40 for opening and closing the refrigerating compartment 12, and an opening formed in the main door 40 by being rotatably disposed on the main door 40 ( 45) may be configured as a sub door 50 that opens and closes.

The main door 40 may be formed to have the same size as the left refrigerating compartment door 20 of the pair of refrigerating compartment doors 20 . The main door 40 is rotatably mounted to the cabinet 10 by the upper hinge 40a and the lower hinge 40b to open and close at least a portion of the refrigerating compartment 12 .

An opening 45 having a predetermined size is formed in the main door 40 . Here, the size of the opening 45 may occupy most of the front surface of the main door 40 except for a portion of the circumference of the main door 40 . A door basket 46 is mounted on the rear surface of the main door 40 including the inside of the opening 45 . Accordingly, the user can access the door basket 46 through the opening 45 without opening the main door 40 .

The sub door 50 is rotatably mounted on the front surface of the main door 40 to open and close the opening 45 . Specifically, the sub door 50 may be provided with a sub upper hinge 50a and a sub lower hinge 50b at upper and lower ends, respectively, and may be rotatably mounted on the front surface of the main door 40 . Accordingly, the sub door 50 may be configured to independently rotate to open and close the opening 45 while the main door 40 is closed.

At least a portion of the sub door 50 is made of a transparent material such as glass. Therefore, access to the opening 45 is possible even through the opening of the sub door 50, and at the same time, it is possible to see through the inside of the opening 45 even when the sub door 50 is closed. Accordingly, the sub door 50 may be called a see-through door.

The glass material constituting the sub-door 50 can be configured to be selectively operated in a transparent or opaque state according to a user's manipulation by adjusting the transmittance and reflectance of light. Accordingly, the sub door 50 becomes transparent only in a state desired by the user to visualize the inside of the refrigerator, and maintains an opaque state in other states.

5 is a perspective view of a combination of a main door and a sub door of a refrigerator according to an embodiment of the present invention.

As shown in the drawing, the main door 40 includes an outer plate 41 made of metal, a door liner 42 coupled to the outer plate 41, and upper and lower ends of the outer plate 41 and the door liner 42. The outer shape can be formed by the door cap deco 47 provided in.

The outer plate 41 may be formed of a plate-shaped stainless material, and may be bent to form a part of the front surface and the circumferential surface of the main door 40 . The outer plate 41 is formed such that an area corresponding to the opening 45 is open.

The door liner 42 may be injection-molded from a plastic material and forms the rear surface of the main door 40 . The door liner 42 is formed such that an area corresponding to the opening 45 is open.

A door lighting unit 49 may be provided on an upper surface of the door liner 42 to illuminate the inside of the opening 45 . The door lighting unit 49 may illuminate the entire opening 45 by radiating light downward from the upper side of the opening 45, thereby making the sub door 50 transparent.

The door lighting unit 49 may be selectively turned on/off according to a user's manipulation. When the door lighting unit 49 is turned on, the storage space formed in the main door 40 is illuminated. When the storage space of the main door 40, that is, the inside of the cabinet becomes brighter than the outside of the cabinet, the light emitted by the door lighting unit 49 passes through the sub door 50. Accordingly, the user can transparently recognize the sub door 50 and can view the storage space inside the main door 40 from the outside through the sub door 50 .

A door handle 462 may be recessed into a lower surface of the main door 40 . In this case, the user can open and close the refrigerating compartment 12 by inserting a hand into the door handle 462 and manipulating the main door 40 to rotate.

Meanwhile, a door frame 43 may be further formed between the outer plate 41 and the door liner 42 . The door frame 43 is coupled between the outer plate 41 and the door liner 42, respectively, and forms a circumference of the opening 45.

In a state where the outer plate 41, the door liner 42, the door frame 43, and the door cap deco 47 are combined, the inner space of the main door 40 is filled with foam to form an insulating material. do. That is, a heat insulating material is disposed inside the circumferential region of the opening 45 to insulate the inside space and the outside space.

A frame stepped portion 431 protruding inward may be formed on an inner surface of the door frame 43 . Accordingly, when the sub door 50 is closed, the frame step portion 431 can support the sub door 50 .

Hinge holes 433 in which sub hinges 50a and 50b for mounting the sub door 50 are mounted are opened at the top and bottom of one side of the door frame 43 . The hinge hole 433 is opened at a position facing the side of the sub door 50 and is formed so that the sub hinges 50a and 50b can be inserted.

6 is a perspective view of a sub door of a refrigerator according to an embodiment of the present invention.

As shown in the drawing, the sub door 50 may be formed in a shape corresponding to the shape of the opening 45 . The sub door 50 includes a panel assembly 54 in which a plurality of glasses are laminated at regular intervals, side frames 55 and 56 forming both sides of the sub door 50, and upper and lower surfaces of the sub door 50. It may be configured to include an upper cap deco 57 and a lower cap deco 58 forming a.

The panel assembly 54 forms the entire front surface of the sub door 50 . The panel assembly 54 may be composed of a plurality of panels. In this case, the panel assembly 54 may have a heat insulating material or a heat insulating structure, and may be configured to prevent cold air from leaking out of the refrigerator.

The panel assembly 54 is formed of glass or a material capable of seeing through the inside, and is configured to selectively see through the inside of the refrigerator. Specifically, the panel assembly 54 may be formed of a glass material capable of selectively seeing through the inside according to light transmittance and reflectance. In this case, the panel assembly 54 can be selectively seen as transparent according to the on/off of the lighting unit 85 or the door lighting unit 49 in the refrigerator, whereby the rear of the sub door 50 is selectively seen through. configured to be able to

That is, when the door lighting unit 49 is turned on, light inside the cabinet passes through the panel assembly 54 and the panel assembly 54 appears transparent. Accordingly, the inner space behind the sub door 50 or the storage space formed in the main door 40 can be viewed from the outside even when the sub door 50 is closed.

When the door lighting unit 49 is turned off, light does not pass through the panel assembly 54 but is reflected, and thus the panel assembly 54 becomes a mirror surface. In this state, the inner space behind the sub door 50 or the storage space formed in the main door 40 cannot be seen from the outside.

The side frames 55 and 56 form both left and right sides of the sub door 50 . The side frames 55 and 56 may be formed of a metal material and connect the panel assembly 54 and the door liner 42 .

The side frames 55 and 56 include a first side frame 55 forming one surface on which the sub hinges 50a and 50b are mounted, and a second side frame 56 on which a handle 561 for a user to rotate is formed. ) can be configured.

The first side frame 55 extends vertically and is configured to connect between the sub upper hinge 50a and the sub lower hinge 50b. The first side frame 55 may be formed of a metal such as aluminum or a material with high strength, and the sub upper hinge 50a and the sub lower hinge 50b maintain an accurate mounting position to reduce the weight of the sub door 50. Do not change the mounting position by Therefore, the sub door 50 can maintain its initial mounting position with respect to the main door 40, and the outer end of the sub door 50 and the opening 45 of the main door 40 maintain a very close distance. No interference occurs during rotation.

Like the first side frame 55, the second side frame 56 may be formed of metal or a material having high strength. The second side frame 56 may extend from the upper end to the lower end of the sub door 50, and has a handle 561 recessed so that the user can insert his or her hand.

The upper capdeco 57 forms the upper surface of the sub door 50 and connects the upper ends of the first side frame 55 and the second side frame 56. Also, it is coupled to the top of the panel assembly 54.

The lower cap deco 58 forms the lower surface of the sub door 50 and connects the lower ends of the first side frame 55 and the second side frame 56. Also, it is coupled to the lower end of the panel assembly 54.

A proximity detection device 81 and a knock detection device 82 are provided below the sub door 50 . The proximity detecting device 81 is a device for confirming the user's proximity, and the knock detecting device 82 is a device for detecting a knock operation of the sub door 50 by the user. The proximity detection device 81 and the knock detection device 82 are attached to the rear surface of the panel assembly 54 and may be disposed at the lower end of the panel assembly 54 adjacent to the second side frame 56 .

Specifically, the proximity detection device 81 and the knock detection device 82 may be disposed in the bezel 5411 area along the circumference of the rear surface of the panel assembly 54 . The bezel 5411 is formed to prevent transmission of light, and the side frames 55 and 56 coupled to the panel assembly 54, the upper capdeco 57, and the lower capdeco 58 form a panel assembly 54. Do not expose through the front.

The height at which the proximity sensor 81 is installed may be the lower end of the sub door 50 . As a result, detection is possible in the case of a general adult, but detection is not performed in the case of a short child or an animal or other object lower than the height of the proximity sensing device 81 .

Meanwhile, although not shown in FIGS. 4A to 6 , the refrigerator 1 according to an embodiment of the present invention may include a main controller and a camera.

The main control unit controls the overall operation of the refrigerator 1 and may be disposed at a predetermined location on the cabinet 10 . In this case, wires connected to parts such as the proximity detection device 81, the knock detection device 82, and the door lighting unit 49 provided in the sub door 50 are guided to the outside of the sub door 50. It can be connected to the main control unit 2 .

According to the present invention, the main controller can control the operation of the refrigerator 1 based on a control signal received from the mobile terminal 100 . Specifically, the main controller may turn on the door lighting unit 49 or the lighting unit 85. Also, the main control unit may adjust the cooling temperature of the refrigerating compartment 12 or the freezing compartment 13 . Furthermore, the main controller may control the camera to photograph the internal state of the refrigerating compartment 12 or the freezing compartment 13 .

To this end, the main controller may communicate with the mobile terminal 100 . According to an embodiment, the main controller may perform Bluetooth Low Energy (BLE) communication with the mobile terminal 100 . In this case, the main control unit may include a Bluetooth Low Energy communication chip.

The camera may be mounted at a predetermined position in at least one of the refrigerating chamber 12 and the freezing chamber 13 . In this case, the camera may capture the internal state of the refrigerating compartment 12 or the freezing compartment 13 . A plurality of cameras may be mounted in the refrigerating chamber 12 or the freezing chamber 13 in order to photograph the internal state in more detail.

7A to 7C are diagrams for explaining a case in which a mobile terminal executes an augmented reality control mode according to an embodiment of the present invention.

The mobile terminal 100 according to an embodiment of the present invention may execute an augmented reality control mode. The augmented reality control mode may be a mode for recognizing a connectable electronic device 200 and controlling the recognized electronic device 200 based on an augmented reality image displayed on the screen of the mobile terminal 100 . When the augmented reality control mode is executed, the mobile terminal 100 may control the operation, function, and mode conversion of the electronic device 200 .

The mobile terminal 100 can recognize the connectable electronic device 200 . Specifically, when the mobile terminal 100 enters a certain area, it can recognize the electronic device 200 located in that area or the electronic device 200 located within a certain distance from the mobile terminal 100. . Also, the mobile terminal 100 may recognize the electronic device 200 set by the user.

When the mobile terminal 100 recognizes the connectable home appliance 200, it may output an alarm notifying the user of this. Such an alarm may be displayed on a screen in the form of at least one of video and text, or may be output in the form of at least one of vibration and sound.

In order to set the connectable electronic device 200, the mobile terminal 100 may perform pairing with the electronic device 200. Specifically, unique information of the electronic device 200 paired with the mobile terminal 100 may be input to the mobile terminal 100 . For example, the unique information may be a unique number of the electronic device 200, that is, a serial number given when the corresponding electronic device 200 is manufactured. However, the present invention is not limited thereto, and the unique information can be various types of information capable of identifying the corresponding electronic device 200, such as an IP address assigned to the electronic device 200 and a QR (Quick Response) code. there is. Pairing between the mobile terminal 100 and the electronic device 200 may be performed only at the initial connection or at every connection, depending on the embodiment.

When executing the augmented reality control mode, the mobile terminal 100 may communicate with the electronic device 200 . Communication performed by the mobile terminal 100 with the electronic device 200 may include various types of wireless communication such as BLE communication, NFC communication, Bluetooth, infrared communication (IrDA), and wireless LAN communication. According to an embodiment, the mobile terminal 100 may perform BLE communication (low energy Bluetooth communication) with the electronic device 200 .

Meanwhile, the mobile terminal 100 may start an augmented reality control mode according to various embodiments. According to an embodiment, the mobile terminal 100 may start an augmented reality control mode when the electronic device 200 is included in a screen captured by a camera built in the mobile terminal 100 . According to another embodiment, the mobile terminal 100 may start an augmented reality control mode when recognizing a paired electronic device. According to another embodiment, the mobile terminal 100 may start the augmented reality control mode when receiving a QR code attached to or set on the electronic device 200 .

In this case, in each embodiment, the mobile terminal 100 may ask the user whether to start the augmented reality control mode, and may start the augmented reality control mode according to the user's selection. Also, the mobile terminal 100 may start an augmented reality control mode according to a combination of each embodiment.

Meanwhile, the electronic device 200 may be the refrigerator 1 .

Referring to FIG. 7A , a refrigerator 1 is included in a screen 710 captured by a camera built in the mobile terminal 100 . The refrigerator 1 is paired with the mobile terminal 100 . Accordingly, the mobile terminal 100 recognizes the connectable refrigerator 1 and starts an augmented reality control mode for controlling the refrigerator 1 .

Referring to FIG. 7B , the mobile terminal 100 enters an area where the refrigerator 1 is located or approaches within a certain distance from the refrigerator 1 . In this case, the mobile terminal 100 recognizes the refrigerator 1 paired with the mobile terminal 100 and displays a message 720 asking whether to execute the augmented reality control mode on the screen. According to the user's selection, the mobile terminal 100 starts the augmented reality control mode.

Referring to FIG. 7C , the mobile terminal 100 scans and receives a QR code 730 attached to the side of the refrigerator 1. In this case, the mobile terminal 100 recognizes the QR code 730 and starts an augmented reality control mode for controlling the refrigerator 1 corresponding to the QR code 730.

8 is a diagram illustrating a process of executing an augmented reality control mode by a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 executes the augmented reality control mode (S801).

The mobile terminal 100 may start an augmented reality control mode according to various embodiments. According to an embodiment, the mobile terminal 100 may start an augmented reality control mode when the refrigerator 1 is included in a screen captured by a camera built in the mobile terminal 100 . According to another embodiment, when recognizing the paired refrigerator 1, the mobile terminal 100 may start an augmented reality control mode. According to another embodiment, the mobile terminal 100 may start an augmented reality control mode when receiving a QR code attached to or set on the refrigerator 1.

When the augmented reality control mode is executed, the mobile terminal 100 may display an image of an area illuminated by a camera on the screen. For example, the mobile terminal 100 may illuminate an area including the refrigerator 1 and subjects around the refrigerator 1 with a built-in camera. Accordingly, the screen projected by the camera includes the refrigerator 1 and subjects around the refrigerator 1, and the screen becomes a real image or background displayed by overlapping augmented reality images.

The mobile terminal 100 displays an augmented reality image for controlling the refrigerator 1 (S802).

To this end, the mobile terminal 100 may generate an augmented reality image for controlling the refrigerator 1. Augmented reality means that a virtual image is superimposed on a real image and displayed as a single image. Specifically, augmented reality may mean that a virtual image artificially generated by a computer is augmented and displayed on an image of the physical real world. In the present invention, virtual images included in augmented reality are defined as augmented reality images.

An augmented reality image may include information about an object existing in the real world. Here, the object may include all types of objects constituting the real world, such as electronic devices, components or parts, things or articles, and buildings, and subjects such as animals, plants, and people.

In this case, information about the object may be obtained in a location-based method (GPS-based method), a marker-based method, or the like.

Specifically, in the case of the location-based method, the mobile terminal 100 transmits GPS information and geomagnetic sensor information (eg, direction, tilt information, etc.) to the server 300, and the object the mobile terminal 100 observes Information on (for example, an object photographed by a camera of the mobile terminal 100) is acquired from the server 300. In this case, the mobile terminal 100 may provide information on the object by generating the acquired information on the object as an augmented reality image and superimposing it on the actual image.

In the case of the marker-based method, the mobile terminal 100 finds a marker displayed on an object, recognizes the size of the marker and the distance to the mobile terminal 100, and determines the 3D position and/or distance of the object marked with the marker. can do. The mobile terminal 100 may obtain information about an object directly from a corresponding marker or obtain information about an object associated with a corresponding marker from the server 300 . In this case, the mobile terminal 100 may create an augmented reality image of acquired object information and display it on the image or at a marker position. For example, a marker may include information about an object in the form of an image or a two-dimensional code, or may include various data such as letters, numbers, symbols, and control codes. In this case, the mobile terminal 100 can obtain information about an object by decoding an image of a marker in which information about an object is encoded, a 2D code, and the like. Since a specific method of configuring a marker as a two-dimensional code can be understood in a manner similar to a known two-dimensional code (eg, QR code, PDF417, DataMatrix, MaxiCode, etc.), a detailed description thereof will be omitted.

Alternatively, the marker may itself contain or provide information used to obtain or access information about an object. For example, the information includes a unique number given as a combination of different numbers or letters for each information about an object, URL information for accessing information about an object, identification information for distinguishing different markers (serial number of the marker) etc.) and the like. In this case, the mobile terminal 100 may obtain the information by decoding the marker image, 2D code, etc. in which the information is encoded. The mobile terminal 100 may inquire the server 300 for the information and obtain information on a corresponding object.

According to an embodiment, the augmented reality image may display at least one of components, operations or functions, and states of the refrigerator 1 .

Here, the components include a refrigerating compartment 12, a freezing compartment 13, a refrigerating compartment door 20, a freezing compartment door 30, a main door 40, a door lighting unit 49, a sub door 50, a panel assembly ( 54), a proximity detection device 81, a knock detection device 82, a lighting unit 85, and a door handle 462. The operation or function may include refrigeration or cooling, temperature setting or temperature control, cooling intensity or cooling level setting, deodorization and water purification functions, and the like. The state may include a storage state or internal state of the refrigerating chamber 12 or the freezing chamber 13, a temperature, a cooling state, an external temperature of the refrigerator 1, and the like.

Such an augmented reality image may be displayed in various shapes or colors according to characteristics of an object to be displayed. For example, the augmented reality image of the refrigerating compartment 12 may be displayed as an image in the shape of the refrigerating compartment 12 and change in color according to a change in temperature.

The mobile terminal 100 may overlap and display an augmented reality image on an image of an area illuminated by a camera. For example, the mobile terminal 100 may superimpose an augmented reality image of the sub door 50 on an image including the refrigerator 1 and subjects around the refrigerator 1 and display the image.

In this case, the mobile terminal 100 may display the augmented reality image to be distinguished from the real image. For example, the mobile terminal 100 may display an augmented reality image as a 3D image, a hologram image, or a moving image.

Also, the mobile terminal 100 may display information on the augmented reality image in text form together with the augmented reality image.

The mobile terminal 100 detects an input signal for manipulating an augmented reality image (S803).

When detecting an input signal for manipulating an augmented reality image, the mobile terminal 100 may generate a control signal corresponding to the input signal. The control signal may be for controlling the refrigerator 1 .

To this end, an input signal for manipulating the augmented reality image may correspond to a predetermined control signal. For example, the input signal for knocking the augmented reality image of the sub door 50 may correspond to a control signal for turning on the door lighting unit 49 located in the sub door 50 . An input signal for touching the augmented reality image to the proximity sensing device 81 may correspond to a control signal for opening the refrigerating compartment door 20 . Also, an input signal for dragging the augmented reality image of the thermometer up and down may correspond to a control signal for adjusting the temperature to increase or decrease.

The input signal for manipulating the augmented reality image may include an action of tapping or dragging the augmented reality image, a short (or tap) touch, a long touch, a multi-touch, a drag touch, a flick touch, and a pinch-in touch on the augmented reality image. , a pinch-out touch, a swipe touch, a hovering touch, and the like.

The mobile terminal 100 transmits a control signal corresponding to the input signal (S804).

Specifically, the mobile terminal 100 may transmit a control signal generated in response to an input signal to the paired refrigerator 1.

In this case, the main controller of the refrigerator 1 may receive the control signal and control the operation of the refrigerator 1 based on the received control signal.

9A and 9B are diagrams for explaining an example in which a mobile terminal executes an augmented reality control mode according to an embodiment of the present invention.

According to this embodiment, when the mobile terminal 100 detects an input signal knocking on the augmented reality image 910 corresponding to the sub door 50, a control signal for turning on the door lighting unit 49 is sent to the refrigerator ( 1) can be sent. Hereinafter, an input signal knocking the augmented reality image 910 corresponding to the sub door 50 is defined as a knock-on signal.

The knock on signal may be input by a user's motion of tapping the augmented reality image 910 corresponding to the sub door 50 displayed on the screen of the mobile terminal 100 .

According to an embodiment, the mobile terminal 100 may control the door lighting unit 49 to be turned on in stages in response to the number of detections of the knock-on signal. For example, the mobile terminal 100 controls the refrigerator 1 to light up more door lighting units 49 or to light up the door lighting units more brightly as the number of knock-on signals detected increases. can do. In this case, the user can gradually control the refrigerator 1 according to the number of knock-on operations.

9A is a case in which the user knocks on the augmented reality image 910 of the sub door 50 .

The mobile terminal 100 may generate an augmented reality image 910 based on a real image. Specifically, the mobile terminal 100 may recognize an object included in a real image projected by a camera and generate an augmented reality image 910 that is a virtual image of the recognized object. In this case, the mobile terminal 100 may superimpose the augmented reality image 910 on a real image and display it.

Referring to FIG. 9A , a real image, that is, an image of a region including a refrigerator 1 and subjects around the refrigerator 1 is projected on the screen of the mobile terminal 100 . The mobile terminal 100 recognizes the sub door 50 of the refrigerator 1 and creates an augmented reality image 910 for the sub door 50 .

The mobile terminal 100 overlays the augmented reality image 910 of the sub door 50 on the image of the region including the refrigerator 1 and subjects around the refrigerator 1 and displays it. In this case, the augmented reality image 910 of the sub door 50 is displayed as a stereoscopic image so that it can be distinguished from a real image.

In this state, the user knocks on the augmented reality image 910 of the sub door 50, and the mobile terminal 100 detects the knock on signal.

9B is a case where the sub door 50 changes to be transparent.

The mobile terminal 100 may detect a knock on signal. The knock on signal may correspond to a control signal for turning on the door lighting unit 49 located in the sub door 50 . In this case, the mobile terminal 100 may generate a control signal for turning on the door lighting unit 49 located on the sub door 50 and transmit the generated control signal to the refrigerator 1.

When receiving the control signal from the mobile terminal 100, the main controller of the refrigerator 1 turns on the door lighting unit 49 located in the sub door 50. When the door lighting unit 49 located in the sub door 50 is turned on, the inside of the sub door 50 becomes bright and the sub door 50 becomes transparent.

Meanwhile, according to embodiments, the knock-on signal may correspond to a control signal for turning on the lighting unit 85 provided in the refrigerator. In this case, the main controller of the refrigerator 1 may turn on the lighting unit 85 to brighten the inside of the refrigerator, thereby making the sub door 50 transparent.

Referring to FIG. 9B , the main controller of the refrigerator 1 turns on the door lighting unit 49 located on the sub door 50 . In this case, in a state where both the main door 40 and the sub door 50 of the refrigerator 1 are closed, the sub door 50 becomes transparent. When the sub door 50 becomes transparent, the storage space of the main door 40 and the inner space of the refrigerating compartment 12 can be visualized through the sub door 50 . Accordingly, the user can check the storage space of the main door 40 and the food storage state of the inner space of the refrigerating compartment 12 without opening the main door 40 and the sub door 50 .

As described above, according to the present embodiment, the user does not directly knock on the door of the refrigerator 1, but only knocks on the augmented reality image 910 corresponding to the refrigerator compartment door 20 displayed on the screen of the mobile terminal 100. Also, by making the sub door 50 transparent, it is possible to check the internal space and storage space of the refrigerator 1. In this way, the inconvenience of having to go directly to the front of the refrigerator 10 for the knock-on operation can be eliminated.

10A and 10B are diagrams for explaining another example in which a mobile terminal executes an augmented reality control mode according to an embodiment of the present invention.

According to this embodiment, the mobile terminal 100 opens the refrigerating compartment door 20 or the freezing compartment door 30 when detecting an input signal of touching the augmented reality image 1010 corresponding to the proximity sensor 81. It is possible to transmit a control signal to the refrigerator (1).

According to an embodiment, the mobile terminal 100 may open the refrigerating compartment door 20 and the freezing compartment door 30 step by step in response to the number of times the touch input signal is detected. For example, the mobile terminal 100 may sequentially open the right or left door of the refrigerator compartment door 20 or the freezer compartment door 30 in response to the number of touch inputs.

10A is a case where the user touches the augmented reality image 1010 for the proximity sensor 810.

The mobile terminal 100 may generate an augmented reality image 1010 based on a real image. Specifically, the mobile terminal 100 may search for information related to a real image projected by a camera and generate an augmented reality image 1010 that is a virtual image for the searched information. In this case, the mobile terminal 100 may overlay the augmented reality image 1010 on a real image and display it.

Here, the mobile terminal 100 may obtain information related to a real image by searching the memory of the mobile terminal 100 or performing a search through the Internet. For example, the mobile terminal 100 recognizes the refrigerator 1 included in the real image and searches for the proximity sensing device 81, which is a component of the refrigerator 1. When the proximity sensing device 81 is searched for, the mobile terminal 100 may generate an augmented reality image 1010 representing the corresponding proximity sensing device 81 .

Referring to FIG. 10A , a real image, that is, an image of a region including a refrigerator 1 and subjects around the refrigerator 1 is projected on the screen of the mobile terminal 100 . The mobile terminal 100 searches for the proximity sensing device 81 related to the refrigerator 1 and generates an augmented reality image 1010 for the proximity sensing device 81 .

The mobile terminal 100 overlays the augmented reality image 1010 of the proximity sensing device 81 on the image of the area including the refrigerator 1 and subjects around the refrigerator 1 and displays it. In this case, the augmented reality image 1010 for the proximity sensing device 81 is displayed as a stereoscopic image so that it can be distinguished from a real image.

In this state, the user touches the augmented reality image 1010 for the proximity sensing device 81, and the mobile terminal 100 detects an input signal of touching the augmented reality image 1010.

10B is a case in which the refrigerating compartment door 20 and the freezing compartment door 30 are opened.

The mobile terminal 100 may detect an input signal of touching the augmented reality image 1010 to the proximity sensing device 81 . An input signal for touching the augmented reality image 1010 to the proximity sensor 81 may correspond to a control signal for opening the refrigerating compartment door 20 and/or the freezing compartment door 30 . In this case, the mobile terminal 100 may generate a control signal for opening the refrigerating compartment door 20 and the freezing compartment door 30 and transmit the generated control signal to the refrigerator 1 .

When receiving the control signal from the mobile terminal 100, the main controller of the refrigerator 1 opens the refrigerating compartment door 20 and/or the freezing compartment door 30.

Referring to FIG. 10B , the main controller of the refrigerator 1 opens the refrigerating compartment door 20 and/or the freezing compartment door 30 . In general, the refrigerator 1 opens the refrigerating compartment door 20 and/or the freezing compartment door 30 when a user's approach is detected by the proximity sensor 81 . Therefore, in order to automatically open the refrigerating compartment door 20 and the freezing compartment door 30, the user must directly approach the refrigerator 1.

However, according to this embodiment, the user does not directly approach the proximity sensing device 81, and only touches the augmented reality image 1010 corresponding to the proximity sensing device 810 displayed on the screen of the mobile terminal 100. Also, the refrigerating compartment door 20 and/or the freezing compartment door 30 can be opened. In this way, the inconvenience of the user having to go directly to the front of the refrigerator 1 can be eliminated so that the refrigerator 1 can recognize the user's proximity.

11 is a diagram for explaining another example in which a mobile terminal executes an augmented reality control mode according to an embodiment of the present invention.

According to the present embodiment, when the mobile terminal 100 executes the augmented reality control mode, it can display an augmented reality image capable of controlling the refrigerator 1 and a guide on how to manipulate the augmented reality image together. there is.

The augmented reality image may be related to the refrigerator 1 . Specifically, it may relate to at least one of components, functions, and operations of the refrigerator 1.

According to one embodiment, the augmented reality image may be related to a knock-on function. The knock-on function is a function that makes it possible to see through the inside by knocking on the sub door 50 . In this case, the augmented reality image may represent the sub door 50 .

According to another embodiment, the augmented reality image may be related to a smart door function. The smart door function is a function that automatically opens a door by approaching a predetermined position of the refrigerator 1. In this case, the augmented reality image may represent the proximity sensing device 81 .

According to another embodiment, the augmented reality image may be related to a temperature control function. The temperature control function is a function of adjusting the cooling/freezing temperature of the refrigerating compartment 12 or the freezing compartment 13 . In this case, the augmented reality image may represent a thermometer.

The guide for the manipulation method may provide information on a specific method of controlling the refrigerator 1 using an augmented reality image. This guide may be provided in the form of video or text.

In this case, a guide for a manipulation method may be displayed corresponding to each augmented reality image. For example, when an augmented reality image is related to a knock-on function, a guide for an operation method is displayed as an image representing a knock-on operation. When the augmented reality image is related to the smart door function, a guide for a manipulation method is displayed as an image representing a touch operation. When the augmented reality image is related to the temperature control function, a guide for a manipulation method is displayed as an image representing a drag operation.

Referring to FIG. 11 , in the refrigerator 1 image projected by the camera of the mobile terminal 100, a first augmented reality image 1110, a second augmented reality image 1120, and a third augmented reality image 1130 are displayed overlapping.

Here, the first augmented reality image 1110 represents the sub door 50, the second augmented reality image 1120 represents the proximity sensor 81, and the third augmented reality image 1130 represents the thermometer.

In this case, each of the first augmented reality image 1110, the second augmented reality image 1120, and the third augmented reality image 1130 displays a guide on how to manipulate the corresponding augmented reality image.

The knock on function is performed by knocking on the sub door 50 . Accordingly, the guide 1111 for the knock-on operation is displayed on the first augmented reality image 1110 .

The smart door function is performed by approaching the proximity detection device 810. Accordingly, a guide 1121 for an approaching operation is displayed on the second augmented reality image 1120 .

The temperature control function is performed by increasing or decreasing the target temperature of the thermometer. Accordingly, the guide 1131 for the drag operation is displayed on the third augmented reality image 1130 .

12 is a diagram illustrating a process of executing an augmented reality control mode by a mobile terminal according to another embodiment of the present invention.

The mobile terminal 100 executes the augmented reality control mode (S1201).

The mobile terminal 100 may start an augmented reality control mode according to various embodiments. Since various embodiments of starting the augmented reality control mode have already been described with reference to FIGS. 7A to 7C , a description thereof is omitted here.

When the augmented reality control mode is executed, the mobile terminal 100 may display an image of an area illuminated by a camera on the screen. For example, the mobile terminal 100 may illuminate an area including the refrigerator 1 and subjects around the refrigerator 1 with a built-in camera. Accordingly, the screen projected by the camera includes the refrigerator 1 and subjects around the refrigerator 1, and the screen becomes a real image or background displayed by overlapping augmented reality images.

The mobile terminal 100 displays an augmented reality image for controlling the refrigerator 1 (S1202).

To this end, the mobile terminal 100 may generate an augmented reality image for controlling the refrigerator 1. An augmented reality image may include information about an object existing in the real world. Here, the object may include all types of objects constituting the real world, such as electronic devices, components or parts, things or articles, and buildings, and subjects such as animals, plants, and people.

According to an embodiment, the augmented reality image may display at least one of components, operations or functions, and states of the refrigerator 1 .

Here, the components include a refrigerating compartment 12, a freezing compartment 13, a refrigerating compartment door 20, a freezing compartment door 30, a main door 40, a door lighting unit 49, a sub door 50, a panel assembly ( 54), a proximity detection device 81, a knock detection device 82, a lighting unit 85, and a door handle 462. The operation or function may include refrigeration or cooling, temperature setting or temperature control, cooling intensity or cooling level setting, deodorization and water purification functions, and the like. The state may include a storage state or internal state of the refrigerating chamber 12 or the freezing chamber 13, a temperature, a cooling state, an external temperature of the refrigerator 1, and the like.

Such an augmented reality image may be displayed in various shapes or colors according to characteristics of an object to be displayed.

According to one embodiment, the augmented reality image may be for the sub door 50 . In this case, the mobile terminal 100 may overlap and display an augmented reality image on an image of an area illuminated by a camera. For example, the mobile terminal 100 may superimpose an augmented reality image of the sub door 50 on an image including the refrigerator 1 and subjects around the refrigerator 1 and display the image.

The mobile terminal 100 may display the augmented reality image of the sub door 50 to be distinguished from a real image including the refrigerator 1 and subjects around the refrigerator 1 . For example, the mobile terminal 100 may display an augmented reality image of the sub door 50 as a stereoscopic image, a hologram image, or a moving image.

Also, the mobile terminal 100 may display information on the augmented reality image in text form together with the augmented reality image.

The mobile terminal 100 detects a knock-on signal input to the augmented reality image (S1203).

Specifically, the mobile terminal 100 may detect a knock on signal knocking an augmented reality image corresponding to the sub door 50 . When detecting a knock-on signal, the mobile terminal 100 may generate a control signal corresponding to the knock-on signal.

To this end, the knock on signal may correspond to a predetermined control signal. Specifically, the knock on signal may correspond to a control signal for turning on the door lighting unit 49 located in the sub door 50 .

The mobile terminal 100 transmits a control signal corresponding to the knock-on signal (S1204).

Specifically, the mobile terminal 100 may transmit a control signal generated in response to an input signal to the paired refrigerator 1.

In this case, the main controller of the refrigerator 1 receives the control signal and turns on the door lighting unit 49 located in the sub door 50 based on the control signal. As a result, the sub door 50 becomes transparent, so that the inner space and storage space can be seen.

The mobile terminal 100 receives internal information from the refrigerator 1 (S1205).

Internal information may be information about the internal state of the refrigerator 1. Specifically, the main controller of the refrigerator 1 may control a camera to photograph the inside of the refrigerating compartment 12 or the freezing compartment 13 and transmit the obtained image or information to the mobile terminal 100 . To this end, a camera may be mounted inside the refrigerating compartment 12 or the freezing compartment 13 .

The mobile terminal 100 displays an augmented reality image corresponding to the internal information (S1206).

The augmented reality image corresponding to the inside information may be an image of the inside of the refrigerating chamber 12 or the freezing chamber 13, food contained therein, storage conditions, and the like.

13A and 13B are diagrams for explaining an example in which a mobile terminal executes an augmented reality control mode according to another embodiment of the present invention.

According to the present embodiment, the mobile terminal 100 transmits a control signal for turning on the door lighting unit 49 to the refrigerator 1 when detecting a knock-on signal, and responds to the control signal received inside the refrigerator 1. An augmented reality image may be displayed based on the information.

Here, the augmented reality image may be for an internal image of the refrigerator 1 projected through the sub door 50 when the door lighting unit 49 is turned on.

Depending on the embodiment, the mobile terminal 100 may turn on the door lighting unit 49 or the lighting unit 85 in response to an area where the user knocks. For example, when the user knocks on the augmented reality image of the sub door 50, the mobile terminal 100 turns on the door lighting unit 49 and sends a knock on signal to the augmented reality image of the refrigerator compartment door 20. When is input, the lighting unit 85 may be controlled to be turned on.

13A is a case in which the user knocks on the augmented reality image 910 of the sub door 50 .

The mobile terminal 100 may generate an augmented reality image based on a real image. Specifically, the mobile terminal 100 may recognize an object included in a real image projected by a camera and generate an augmented reality image that is a virtual image of the recognized object. In this case, the mobile terminal 100 may display an augmented reality image overlapped with a real image.

Referring to FIG. 13A , a real image, that is, an image of a region including a refrigerator 1 and subjects around the refrigerator 1 is projected on the screen of the mobile terminal 100 . The mobile terminal 100 recognizes the sub door 50 of the refrigerator 1 and creates an augmented reality image 910 for the sub door 50 .

The mobile terminal 100 overlays the augmented reality image 910 of the sub door 50 on the image of the region including the refrigerator 1 and subjects around the refrigerator 1 and displays it. In this case, the augmented reality image 910 of the sub door 50 is displayed as a stereoscopic image so that it can be distinguished from a real image.

In this state, the user knocks on the augmented reality image 910 of the sub door 50, and the mobile terminal 100 detects the knock on signal.

13B is a case where the inside of the refrigerator 1 through the sub door 50 is displayed as an augmented reality image.

The mobile terminal 100 may detect a knock on signal. The knock on signal may correspond to a control signal for turning on the door lighting unit 49 located in the sub door 50 . In this case, the mobile terminal 100 may generate a control signal for turning on the door lighting unit 49 located on the sub door 50 and transmit the generated control signal to the refrigerator 1.

When receiving the control signal from the mobile terminal 100, the main controller of the refrigerator 1 turns on the door lighting unit 49 located in the sub door 50. When the door lighting unit 49 located in the sub door 50 is turned on, the inside of the sub door 50 becomes bright and the sub door 50 becomes transparent.

In this case, the main controller of the refrigerator 1 may capture an internal image projected through the sub door 50 . The captured internal image is transmitted to the mobile terminal 100 .

The mobile terminal 100 may generate an augmented reality image based on internal information of the refrigerator 1 . Specifically, the mobile terminal 100 may receive internal information of the refrigerator 1 and generate an augmented reality image 910 based on the internal information.

In this case, the mobile terminal 100 may superimpose the augmented reality image 910 on a real image projected by the camera and display the augmented reality image 910 .

Referring to FIG. 13B , a real image, that is, an image of the refrigerator 1 is displayed on the screen of the mobile terminal 100 . In this case, the mobile terminal 100 generates the inside information of the refrigerator 1 as an augmented reality image. The augmented reality image may be an image of an interior space projected through the sub door 50 .

The mobile terminal 100 overlaps and displays an augmented reality image of the interior space projected through the sub door 50 on the image of the refrigerator 1 . In this case, the augmented reality image of the interior space projected through the sub door 50 is displayed as a stereoscopic image so that it can be distinguished from a real image.

In this case, the user can easily check the storage space of the refrigerator 1 and the food storage state of the internal space through the mobile terminal 100 remotely without coming close to the refrigerator 1 .

As described above, according to the present embodiment, the user does not directly knock on the door of the refrigerator 1, but only knocks on the augmented reality image 910 corresponding to the refrigerator compartment door 20 displayed on the screen of the mobile terminal 100. Also, the inside of the refrigerator 1 seen through the sub door 50 can be easily checked remotely through the mobile terminal 100 . Accordingly, convenience is provided for the user to remotely perform a knock-on operation through the mobile terminal 100 .

14A and 14B are diagrams for explaining another example in which a mobile terminal executes an augmented reality control mode according to another embodiment of the present invention.

According to the present embodiment, the mobile terminal 100 transmits a control signal for turning on the door lighting unit 49 to the refrigerator 1 when detecting a knock-on signal, and responds to the control signal received inside the refrigerator 1. An augmented reality image may be displayed based on the information.

Here, the augmented reality image may be for an article stored inside the refrigerator 1 projected through the sub door 50 when the door lighting unit 49 is turned on.

14A is a case in which the user knocks on the augmented reality image 910 of the sub door 50 .

Referring to FIG. 14A , a real image, that is, an image of a region including a refrigerator 1 and subjects around the refrigerator 1 is projected on the screen of the mobile terminal 100 . The mobile terminal 100 recognizes the sub door 50 of the refrigerator 1 and creates an augmented reality image 910 for the sub door 50 .

The mobile terminal 100 overlays the augmented reality image 910 of the sub door 50 on the image of the region including the refrigerator 1 and subjects around the refrigerator 1 and displays it. In this case, the augmented reality image 910 of the sub door 50 is displayed as a stereoscopic image so that it can be distinguished from a real image.

In this state, the user knocks on the augmented reality image 910 of the sub door 50, and the mobile terminal 100 detects the knock on signal.

FIG. 14B is a case in which an internally stored article seen through the sub door 50 is displayed as an augmented reality image.

The mobile terminal 100 may detect a knock on signal. The knock on signal may correspond to a control signal for turning on the door lighting unit 49 located in the sub door 50 . In this case, the mobile terminal 100 may generate a control signal for turning on the door lighting unit 49 located on the sub door 50 and transmit the generated control signal to the refrigerator 1.

When receiving the control signal from the mobile terminal 100, the main controller of the refrigerator 1 turns on the door lighting unit 49 located in the sub door 50. When the door lighting unit 49 located in the sub door 50 is turned on, the inside of the sub door 50 becomes bright and the sub door 50 becomes transparent.

In this case, the main controller of the refrigerator 1 may capture an internal image projected through the sub door 50 . The captured internal image is transmitted to the mobile terminal 100 .

The mobile terminal 100 may generate an augmented reality image based on internal information of the refrigerator 1 . Specifically, the mobile terminal 100 receives internal information of the refrigerator 1 and recognizes an internally stored article through the sub door 50 based on the internal information.

In this case, the mobile terminal 100 may generate an augmented reality image 910 for each internal storage item. The mobile terminal 100 may superimpose an augmented reality image 910 for each stored article on a real image projected by a camera and display the augmented reality image 910 .

Referring to FIG. 14B , a real image, that is, an image of the refrigerator 1 is displayed on the screen of the mobile terminal 100 . In this case, the mobile terminal 100 generates an augmented reality image based on internal information of the refrigerator 1 . The augmented reality image may be an image of an internal storage item projected through the sub door 50 .

The mobile terminal 100 overlaps and displays an augmented reality image of the stored article through the sub door 50 on the image of the refrigerator 1 . In this case, a stereoscopic image is displayed so that it can be distinguished from an augmented reality image of an internally stored article projected through the sub door 50 and a real image.

As a result, the user can remotely check the internally stored articles projected through the sub door 50 of the refrigerator 1 through the mobile terminal 100 without coming close to the refrigerator 1 .

As described above, according to the present embodiment, the user does not directly knock on the door of the refrigerator 1, but only knocks on the augmented reality image 910 corresponding to the refrigerator compartment door 20 displayed on the screen of the mobile terminal 100. Even with the mobile terminal 100, it is possible to remotely check the internally stored article through the sub door 50 with ease. Accordingly, convenience is provided for the user to remotely perform a knock-on operation through the mobile terminal 100 .

The above-described present invention can be implemented as computer readable code on a medium on which a program is recorded. The computer-readable medium includes all types of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable media include Hard Disk Drive (HDD), Solid State Disk (SSD), Silicon Disk Drive (SDD), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. , and also includes those implemented in the form of a carrier wave (eg, transmission over the Internet). Also, the computer may include the control unit 180 of the terminal.

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

1: refrigerator 12: refrigerator compartment
13: freezer compartment 20: refrigerator compartment door
30: freezer door 40: main door
49: door lighting unit 50: sub door
54: panel assembly 81: proximity sensor
82: knock detection device 85: lighting unit
100: mobile terminal 110: wireless communication unit
120: input unit 140: detection unit
150: output unit 160: interface unit
170: memory 180: control unit
190: power supply

Claims (18)

In the mobile terminal,
wireless communication unit;
camera;
a display unit displaying the refrigerator illuminated by the camera; and
The refrigerator displayed on the display unit is recognized to generate an augmented reality image that is a virtual image related to the refrigerator, and when an input signal for manipulating the augmented reality image is detected, a control signal for controlling the refrigerator is transmitted to the refrigerator. Including a control unit for transmitting to,
The control unit
When detecting a first input signal indicating a knock-on signal knocking on the augmented reality image, transmitting a first control signal for making the door of the refrigerator transparent to the refrigerator through the wireless communication unit;
Controlling the refrigerator so that the door lighting unit of the refrigerator is more brightly lit as the number of detections of the knock-on signal increases.
mobile terminal. delete According to claim 1,
The mobile terminal of claim 1 , wherein the control unit receives an internal image projected through the transparent refrigerator door from the refrigerator and displays the internal image as a first augmented reality image. According to claim 1,
The mobile terminal of claim 1 , wherein the control unit receives an internal image projected through a transparent door of the refrigerator from the refrigerator, and displays at least one stored item included in the internal image as a first augmented reality image. According to claim 1,
Wherein the control unit generates a second control signal to open a door of the refrigerator and transmits the second control signal to the refrigerator when detecting a second input signal touching the augmented reality image. In a system including a mobile terminal and a refrigerator,
The mobile terminal,
wireless communication unit;
camera;
a display unit displaying the refrigerator illuminated by the camera; and
A control signal for recognizing the refrigerator displayed on the display unit, generating an augmented reality image that is a virtual image related to the refrigerator, and controlling the refrigerator in response to an input signal for manipulating the augmented reality image. And a control unit for generating and transmitting to the refrigerator,
The control unit
When detecting a first input signal indicating a knock-on signal knocking on the augmented reality image, transmitting a first control signal for making the door of the refrigerator transparent to the refrigerator through the wireless communication unit;
Controlling the refrigerator so that a door lighting unit of the refrigerator is turned on more brightly as the number of detections of the knock-on signal increases;
the refrigerator,
When receiving the control signal from the mobile terminal, including a main control unit for performing control corresponding thereto, the system. delete According to claim 6,
The system of claim 1 , wherein the refrigerator captures an internal image projected through the transparent door of the refrigerator and transmits the image to the mobile terminal. According to claim 8,
The system of claim 1 , wherein the mobile terminal displays the internal image as a first augmented reality image when receiving the internal image from the refrigerator. According to claim 8,
The system of claim 1 , wherein the mobile terminal displays at least one stored item included in the internal image as a first augmented reality image when receiving the internal image from the refrigerator. According to claim 6,
Wherein the mobile terminal generates a second control signal to open a door of the refrigerator and transmits the second control signal to the refrigerator when detecting a second input signal touching the augmented reality image. In the control method of a system including a mobile terminal and a refrigerator,
displaying, by the mobile terminal, the refrigerator on a screen of the mobile terminal by using a camera built into the mobile terminal;
recognizing, by the mobile terminal, the refrigerator displayed on the screen and generating an augmented reality image that is a virtual image related to the refrigerator;
generating, by the mobile terminal, a control signal for controlling the refrigerator in response to detecting an input signal for manipulating the augmented reality image;
transmitting, by the mobile terminal, the control signal to the refrigerator; and
When the refrigerator receives the control signal from the mobile terminal, performing control corresponding thereto,
Transmitting the control signal
Transmitting a first control signal for making a door of the refrigerator transparent to the refrigerator through a wireless communication unit of the mobile terminal when detecting a first input signal indicating a knock-on signal knocking on the augmented reality image. include,
The control method
Further comprising, by the mobile terminal, controlling the refrigerator so that a door lighting unit of the refrigerator is turned on more brightly as the number of detections of the knock-on signal increases.
How to control the system. delete According to claim 12,
A control method of a system in which the refrigerator captures an internal image projected through a transparent door of the refrigerator and transmits the image to the mobile terminal. According to claim 14,
The system control method of displaying the internal image as a first augmented reality image when the mobile terminal receives the internal image from the refrigerator. According to claim 14,
The system control method of displaying at least one stored item included in the internal image as a first augmented reality image when the mobile terminal receives the internal image from the refrigerator. According to claim 12,
A method of controlling a system of generating a second control signal for opening a door of the refrigerator and transmitting the generated second control signal to the refrigerator when the mobile terminal detects a second input signal touching the augmented reality image. A computer-readable program in which a program for performing a control method of a system including a mobile terminal and a refrigerator is recorded on a recording medium, the control method of the system comprising:
displaying, by the mobile terminal, the refrigerator on a screen of the mobile terminal by using a camera built into the mobile terminal;
recognizing, by the mobile terminal, the refrigerator displayed on the screen and generating an augmented reality image that is a virtual image related to the refrigerator;
generating, by the mobile terminal, a control signal for controlling the refrigerator in response to detecting an input signal for manipulating the augmented reality image;
transmitting, by the mobile terminal, the control signal to the refrigerator; and
When the refrigerator receives the control signal from the mobile terminal, performing control corresponding thereto,
Transmitting the control signal
Transmitting a first control signal for making a door of the refrigerator transparent to the refrigerator through a wireless communication unit of the mobile terminal when detecting a first input signal representing a knock-on signal knocking on the augmented reality image. include,
The control method
Further comprising, by the mobile terminal, controlling the refrigerator so that a door lighting unit of the refrigerator is turned on more brightly as the number of detections of the knock-on signal increases.
A recording medium on which a computer-readable program is recorded.

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