KR102529124B1 - Mobile terminal for performing method of displaying filter status of water purifier and recording medium recording program performing same - Google Patents

Abstract

A mobile terminal according to an embodiment of the present invention may display a filter state of a water purifier using an augmented reality technique. To this end, the mobile terminal receives a camera for obtaining an image including the water purifier, a display unit for displaying the image acquired by the camera, and a filter status display request of the water purifier, and responds to the received filter status display request. to receive state information of each of the plurality of filters included in the water purifier from the water purifier, and to display the state of each of the plurality of filters on an image including the water purifier based on the received state information. and a control unit controlling the display unit.

Description

A mobile terminal performing a method of displaying a filter state of a water purifier and a recording medium in which a program performing the method is recorded

The present invention relates to a mobile terminal performing a method of displaying a filter state of a water purifier and a recording medium on which a program for performing the method is recorded.

Mobile terminals equipped with cameras (eg, camera phones, smart phones, etc.), digital video recording devices such as digital camcorders and digital cameras are increasingly being used.

Such an image capture device generally provides a preview function. The preview function is a function of displaying an image projected on a lens in real time as a series of images so that a user can press a shutter to select a predetermined screen.

A technique for providing information on an object included in the preview image or an object within a certain distance is being developed. Such technology is called augmented reality technology. Augmented reality refers to a reality in which real world images and information are mixed by inserting information related to a real environment into a real environment.

Augmented reality allows users to more easily obtain information related to the real world.

The mobile terminal may be connected to various home appliances. An example of a home appliance connected to a mobile terminal is a water purifier. A water purifier is a device that filters harmful elements such as foreign substances or heavy metals contained in water by physical and/or chemical methods.

Water purifiers can filter foreign substances and heavy metals contained in water using various filters. In general, a water purifier may include a plurality of filters. For example, the plurality of filters may include a filter for filtering foreign substances (impurities), a filter for filtering heavy metals, a filter for filtering compounds, and a filter for filtering harmful gases.

Since the lifetime of each filter is not permanent, replacement is required after a certain period of time. In this case, since the lifespan of each of the filters is different, it is necessary to distinguish and inform the user of the state of each of the filters. In addition, there may be a need for a method of more effectively providing information on the filter state of the water purifier to the user by more intuitively notifying the user of the state of each of the filters.

A first object of the present invention is to provide a mobile terminal capable of easily checking information related to the state of each filter installed in a water purifier and whether or not replacement is required from the outside.

A second object of the present invention is to solve the inconvenience of a connection operation between a mobile terminal and a water purifier performed to check information such as a filter state of the water purifier.

A third object of the present invention is to provide a mobile terminal capable of more accurately determining a filter state using characteristics of supply water supplied to a water purifier.

A fourth object of the present invention is to provide a mobile terminal capable of improving convenience when purchasing or replacing a filter using augmented reality when purchasing or replacing a filter based on a filter state.

In order to solve the first object of the present invention, a mobile terminal obtains an image including a water purifier using a camera, receives state information of each of a plurality of filters from the water purifier based on a filter state display request of the water purifier, Based on the received state information, the state of each of the plurality of filters may be displayed on the image including the water purifier using augmented reality.

In addition, in order to solve the second problem of the present invention, the mobile terminal can recognize the water purifier from the acquired image and automatically connect to the water purifier based on the recognition result.

In order to solve the third object of the present invention, a mobile terminal receives flow rate information of each of a plurality of filters included in the water purifier, and based on the location information of the mobile terminal, the characteristics of the supply water supplied to the water purifier are determined. Information about the filter may be received from the server, and state information of each of the plurality of filters may be generated based on the received flow rate information and characteristics of supplied water.

In order to solve the fourth object of the present invention, the mobile terminal may provide a purchase function for a filter requiring replacement among filters of a water purifier and a replacement guide using augmented reality.

According to an embodiment of the present invention, a user can intuitively check the state of each filter mounted on the water purifier using a mobile terminal in which an application supporting an augmented reality mode is installed.

In addition, since the user can check the filter state of the water purifier using a mobile terminal, there is no need to separately manage replacement time after the filter is installed in the water purifier. Therefore, there is an effect that convenience for filter management can be increased.

In addition, the mobile terminal according to an embodiment of the present invention can more accurately determine the state of each of the filters included in the water purifier by using the characteristics of supplied water in the area where the water purifier is installed.

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.
4 is a block diagram showing configurations of a mobile terminal and a water purifier connected to the mobile terminal according to an embodiment of the present invention.
5 is a flowchart for explaining an operation in which a mobile terminal connects to a water purifier using augmented reality according to an embodiment of the present invention.
6A to 6B are exemplary diagrams of operations of the mobile terminal shown in FIG. 5 .
7 is a flowchart illustrating an operation of displaying a filter state of a water purifier by a mobile terminal according to an embodiment of the present invention.
FIG. 8 is an exemplary view of a screen on which a mobile terminal displays a filter state of a water purifier based on the embodiment shown in FIG. 7 .
9 is a flowchart illustrating an operation in which a mobile terminal displays a filter state of a water purifier based on characteristics of supplied water received from a server using location information according to an embodiment of the present invention.
10 is a flowchart for explaining an additional operation performed by a mobile terminal in relation to an embodiment of the present invention.
11A and 11B are exemplary diagrams of a filter purchasing function and a filter replacement guide provided through a mobile terminal.

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. On the other hand, the virtual key or visual key can be displayed on the touch screen while having various forms, for example, graphic, text ), icon, video, or a combination thereof.

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 unit 190 may have a connection port, and the connection port may be configured as an example of an interface 160 electrically connected to an external charger that supplies power to charge the battery.

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 hereinafter may be embodied 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) may be linked to the CDMA wireless communication system to determine the location of the mobile terminal 100 . 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.

The 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. At this time, 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 that can be implemented in the mobile terminal 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 for providing information related to a real world image to a real world 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 the exterior image of the electronic device 200 included in the preview image, and stores the obtained exterior image of the electronic device 200 in the memory 170 of the mobile terminal 100, together with the exterior image of the electronic device. can be compared

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.

If the external image of the electronic device 200 obtained as a result of the comparison is not stored in the memory 170, the controller 180 transmits the server 300 including the database of the electronic device through the wireless Internet module 113. can access The server 300 may identify the electronic device 200 by comparing 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 a water purifier, an air conditioner, a refrigerator, a washing machine, a TV, a microwave oven, a vacuum cleaner, and an airport robot used in an airport, but this is only an example.

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, a method of operating a mobile terminal according to an embodiment of the present invention will be described. In this specification, the electronic device 200 may correspond to a water purifier.

4 is a block diagram showing configurations of a mobile terminal and a water purifier connected to the mobile terminal according to an embodiment of the present invention.

Referring to FIG. 4 , the mobile terminal 100 may have substantially the same configuration as the mobile terminal 100 described above in FIG. 1 . In FIG. 4 , the first communication module 110 corresponds to the wireless communication unit 110 of FIG. 1 , the first memory 170 corresponds to the memory 170 of FIG. 1 , and the first control unit 180 corresponds to the FIG. It can correspond to the control unit 180 of 1.

The mobile terminal 100 may be connected to the second communication module 210 included in the water purifier 200 through the first communication module 110 . For control of the water purifier 200 through the first communication module 110 and the second communication module 210, state information (for example, filter state information, ice-making state information, temperature information, etc.) of the water purifier 200 Control information based on a control command or a control result may be transmitted and received.

4, the first communication module 110 is shown as being directly connected to the second communication module 210, but according to the embodiment, the first communication module 110 via the server 300, the second communication module ( 210) or the second communication module 210 through a separate wireless access point (AP) such as a router.

The first memory 170 may store various types of information related to the water purifier 200 to be connected to the mobile terminal 100 . Various types of information related to the water purifier 200 may be received from the server 300 and stored therein. In addition, the first memory 170 may store various data related to an application (AR_APP) supporting an augmented reality mode.

The first controller 180 may execute the application AR_APP stored in the first memory 170 and enter an augmented reality mode supported by the application AR_APP. When entering the augmented reality mode, the first controller 180 may obtain an image including the water purifier 200 by controlling the camera 121 . An image obtained from the camera 121 may be a preview image as described above with reference to FIG. 3 .

The first controller 180 may obtain information for identifying the water purifier 200, such as an exterior image of the water purifier 200 included in the preview image or an identifier. The first controller 180 may identify the water purifier 200 based on the obtained information. Since the operation of identifying the water purifier 200 by the first controller 180 is substantially the same as or similar to the operation of identifying the electronic device 200 by the controller 180 described above with reference to FIG. 3 , a detailed description thereof will be omitted. .

The display unit 151 may display an image including the water purifier 200 acquired by the camera 121 . According to an embodiment, the display unit 151 may display information or an interface screen related to the water purifier 200 provided from the application AR_APP by overlapping an image including the currently displayed water purifier 200 . Information related to the water purifier 200 may be received from the server 300 and stored in the first memory 170 .

The water purifier 200 detects whether the filter unit 230 for filtering impurities, heavy metals, compounds, or harmful gases, etc., and the filters included in the filter unit 230 are installed. It may include a filter mounting detection unit 235 for. The filter mounting detection unit 235 may be configured as a unit that automatically detects whether each of the filters included in the filter unit 230 is mounted or not, or may be configured as a unit that manually inputs that each of the filters is mounted. there is. The filter installation detection unit 235 may detect that one of the filters included in the filter unit 230 is replaced, and transmit installation detection information corresponding to the detection result to the second control unit 250 . The second controller 250 may recognize that the corresponding filter has been replaced based on the received mounting detection information.

The flow meter 240 included in the water purifier 200 may measure the flow rate of the filter unit 230 to determine a replacement time for each of the filters included in the filter unit 230 . The flow meter 240 may transmit flow rate information obtained by measuring the flow rate of the filter unit 230 to the second controller 250 . The second controller 250 generates flow rate information for each of the filters included in the filter unit 230 based on the installation detection information of each of the filters detected by the filter installation detection unit 235 and the flow rate information. can do.

The second memory 220 included in the water purifier 200 may store contamination level information according to the flow rate of each of the filters included in the filter unit 230 . The second controller 250 may generate state information including contamination levels of each of the filters based on the pollution level information. Depending on the embodiment, the state information may include information on whether a filter needs to be replaced, which is determined based on the degree of contamination.

For example, when the contamination level according to the contamination level information on a specific filter exceeds a reference value, the second controller 250 may generate replacement information indicating that the corresponding filter needs to be replaced. When the degree of contamination of the filter does not exceed the reference value, the second controller 250 may generate replacement information indicating that the filter is in good condition.

The second controller 250 may transmit state information of each of the determined filters to the mobile terminal 100 through the second communication module 210 .

With reference to the following drawings, operations of the mobile terminal 100 and the water purifier 200 will be described in more detail.

5 is a flowchart for explaining an operation in which a mobile terminal connects to a water purifier using augmented reality according to an embodiment of the present invention.

Referring to FIG. 5 , the mobile terminal 100 may enter the augmented reality mode as an application supporting the augmented reality mode is executed (S100).

Specifically, the first control unit 180 may receive an execution request of the application (AR_APP) through the user input unit 123 or the like. In response to the received execution request, the first controller 180 may execute the application AR_APP and display an execution screen of the application AR_APP through the display unit 151 .

The first controller 180 may automatically enter the augmented reality mode as the application AR_APP is executed. Depending on the embodiment, the first controller 180 may receive a request to enter the augmented reality mode through the user input unit 123 based on the execution screen of the application AR_APP. The first controller 180 may enter the augmented reality mode in response to the received entry request.

As the mobile terminal 100 enters the augmented reality mode, it may obtain an image including the water purifier 200 using the camera 121 included in the mobile terminal 100 (S110).

As described above in step S100, the first controller 180 may enter the augmented reality mode supported by the application AR_APP. When entering the augmented reality mode, the first controller 180 may obtain an image by controlling the camera 121 . As described above with reference to FIG. 3 , an image obtained from the camera 121 may be a preview image. The first controller 180 may display an image obtained from the camera 121 through the display unit 151 .

Depending on the embodiment, the mobile terminal 100 may obtain an image including the water purifier 200 from a separate camera (not shown) connected to the mobile terminal 100 . The separate camera may be installed in a location where the water purifier 200 can be photographed, or may be moved to a location where the water purifier 200 can be photographed under the control of the mobile terminal 100 . When the mobile terminal 100 enters the augmented reality mode, the first controller 180 obtains an image (preview image) including the water purifier 200 from the separate camera, and displays the acquired image to the display unit 151. can be displayed through

The obtained image may include the appearance of the water purifier 200 . Also, according to embodiments, when an identifier for recognizing the water purifier 200 is present on the exterior of the water purifier 200, the image may include only a portion of the water purifier 200 including the identifier.

The mobile terminal 100 can recognize the water purifier 200 from the obtained image (S120).

As described above with reference to FIGS. 3 and 4 , the first controller 180 obtains information for identifying the water purifier 200, such as an external image of the water purifier 200 or an identifier, among the acquired images, by using an image recognition technique. can do. The first controller 180 may recognize the water purifier 200 based on the obtained information.

Based on the recognition result, the mobile terminal 100 may connect to the water purifier 200 (S130).

The mobile terminal 100 may acquire various types of information related to the water purifier 200 based on a result of recognizing the water purifier 200 . The obtained information includes the model name of the water purifier 200, specification information of the water purifier 200 (filter, whether or not there is an ice-making function, etc.), and connection information for connection with the water purifier 200 (identification information upon connection, connection address, etc.), etc. can include

The first controller 180 may connect to the water purifier 200 using the obtained connection information. For example, the mobile terminal 100 and the water purifier 200 may be directly connected using a short-range wireless communication method such as Bluetooth, but may also be connected through a separate wireless AP or server 300.

As the mobile terminal 100 and the water purifier 200 are connected to each other, the mobile terminal 100 receives status information (filter status, ice making status, etc.) of the water purifier 200, or controls for controlling the water purifier 200. signal can be transmitted.

6A to 6B are exemplary diagrams of operations of the mobile terminal shown in FIG. 5 .

Referring to FIGS. 6A and 6B , when the mobile terminal 100 enters the augmented reality mode, the first controller 180 may obtain an image (preview image) using the camera 121 . The camera 121 may obtain an image within a predetermined angle (angle of view) in front of the lens. When the camera 121 is directed toward the water purifier 200 by the user, the camera 121 may obtain an image including an appearance of the water purifier 200 .

The first controller 180 may display the image 500 obtained from the camera 121 through the display unit 151 . As shown in FIG. 6B , the image 500 may include at least a part of the exterior of the water purifier 200 .

The first controller 180 may recognize the water purifier 200 included in the image 500 and perform a connection operation with the recognized water purifier 200 . As an example, when the mobile terminal 100 and the water purifier 200 are connected through Bluetooth, the first controller 180 may perform Bluetooth pairing with the water purifier 200 .

According to an embodiment, when the mobile terminal 100 and the water purifier 200 are connected, the first controller 180 may display a message notifying that the water purifier 200 has been connected through the display unit 151.

Although it has been described in FIGS. 5 to 6B that the connection between the mobile terminal 100 and the water purifier 200 is made after recognizing the water purifier 200 included in the image 500, the mobile terminal 100 and the water purifier 200 are connected according to the embodiment. The water purifier 200 may be connected in advance. For example, when the mobile terminal 100 is connected to a plurality of electronic devices, the first controller 180 determines which of the plurality of electronic devices is the electronic device included in the image 500. Recognizable. As a result of the recognition, when the electronic device included in the image 500 is the water purifier 200, the first controller 180 displays only information about the water purifier 200 through the display unit 151 using an augmented reality technique, and , information on other electronic devices may not be displayed.

7 is a flowchart illustrating an operation of displaying a filter state of a water purifier by a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 7 , the mobile terminal 100 may receive a filter state display request of the water purifier 200 (S200).

The state of each of the plurality of filters included in the filter unit 230 mounted inside the water purifier 200 is not displayed on the exterior of the water purifier 200 . In addition, even if the user separates the filters from the water purifier 200 and directly observes the exterior, it may be difficult to determine whether the filter 230 is currently in a state to be replaced. Accordingly, the mobile terminal 100 according to an embodiment of the present invention may provide the user with the state of each of the plurality of filters included in the filter unit 230 using an augmented reality technique.

When the first controller 180 of the mobile terminal 100 recognizes that the water purifier 200 is included in the image 500 obtained from the camera 121, the first controller 180 is related to displaying or controlling the status of the recognized water purifier 200. Various menus (buttons or icons, etc.) can be displayed. Among the displayed menus, a menu displaying a filter state may exist. In this case, the first control unit 180 may receive a filter status display request by receiving an input for selecting a menu displaying the filter status through the user input unit 123 or the like.

The mobile terminal 100 may receive state information of each of the filters from the water purifier 200 (S210).

Specifically, upon receiving a filter status display request, the first controller 180 may transmit a control command for the water purifier 200 to transmit filter status information to the mobile terminal 100 to the water purifier 200 . there is.

The second controller 250 of the water purifier 200 transmits information about the state of each of the plurality of filters included in the water purifier 200 to the mobile terminal 100 in response to a control command received from the mobile terminal 100. can be sent to

As described above with reference to FIG. 4 , the second control unit 250 controls the installation time of each of the filters based on the flow rate information measured by the flow meter 240 and the installation detection signal received from the filter installation detection unit 235, and 2 Based on the contamination level information according to the flow rate of each of the filters stored in the memory 220, state information of each of the filters may be generated. The second control unit 250 may transmit the generated status information to the mobile terminal 100 .

Depending on the embodiment, the state information of each of the filters may be generated by the first controller 180 of the mobile terminal 100 . In this case, the second control unit 250 may transmit flow rate information measured by the flow meter 240 and information on the mounting time of each of the filters to the mobile terminal 100 . The first control unit 180 of the mobile terminal 100 provides state information of each of the filters based on the received flow rate information and mounting time information and contamination level information according to the flow rate of each filter stored in the first memory 170. can be created directly.

Based on the state information of each of the filters, the mobile terminal 100 may display the state of each of the filters on the image including the water purifier 200 displayed on the display unit 151 (S220).

The first controller 180 visually displays the state of each of the filters currently installed in the water purifier 200 to the user using augmented reality, based on the state information of each of the filters received from the water purifier 200 or generated directly. can be displayed

The first controller 180 may overlap and display the state of each of the plurality of filters mounted on the water purifier 200 with the external image of the water purifier 200 included in the image 500 .

An operation of displaying the status of each of the plurality of filters mounted on the water purifier 200 by the mobile terminal 100 will be described in detail with reference to FIG. 8 .

In this specification, it is assumed that the filter unit 230 includes a first filter 231 to a fourth filter 234 . The first filter 231 is an impurity filter filtering impurities, the second filter 232 is a heavy metal filter filtering heavy metals, the third filter 233 is a compound filter filtering compounds, and the fourth filter 234 ) is assumed to be implemented as a harmful gas filter for filtering harmful gases.

For example, the impurity filter may be implemented as a sediment filter (or micro filter), a hollow fiber membrane filter, and the like, and the heavy metal filter may be implemented as a reverse osmosis filter. In addition, the compound filter may be implemented as a free carbon filter and the like, and the harmful gas filter may be implemented as a post carbon filter. However, the number and type of filters included in the filter unit 230 may be variously implemented according to embodiments.

FIG. 8 is an exemplary view of a screen on which a mobile terminal displays a filter state of a water purifier based on the embodiment shown in FIG. 7 .

Referring to FIG. 8 , the first controller 180 may receive state information of each of the plurality of filters 231 to 234 included in the filter unit 230 from the water purifier 200 . The first controller 180 displays an image of each of the filters 231 to 234 included in the water purifier 200 and a filter status window showing the status of each of the filters 231 to 234 based on the received status information ( 501 to 504 may be displayed on the image 500 including the water purifier 200 . In FIG. 8 , the images of each of the filters 231 to 234 are simply displayed as being overlapped with the exterior image of the water purifier 200 . ~ 234) may be overlapped and displayed in an area corresponding to each actual location.

Specifically, referring to FIG. 8 , the first controller 180 may display images of each of the filters 231 to 234 differently based on state information of each of the filters 231 to 234 . For example, the first controller 180 may display a color of an image corresponding to a filter that needs to be replaced differently from a color of an image corresponding to a filter that does not need to be replaced. Depending on the embodiment, the first controller 180 may display images of each of the filters 231 to 234 according to state information using various methods as well as colors.

The first controller 180 may display filter status windows 501 to 504 indicating the respective states of the filters 231 to 234 on the image 500 . The first filter status window 501 may indicate state information of the first filter 231 , and the second filter status window 502 may indicate state information of the second filter 232 . Also, the third filter status window 503 may indicate state information of the third filter 233 , and the fourth filter status window 504 may indicate state information of the fourth filter 234 .

For example, when the state of the first filter 231 is in need of replacement, the first controller 180 may display an image corresponding to the first filter 231 as a first type image (eg, a red image). there is. Also, the first controller 180 may display a message indicating that replacement of the first filter 231 is required through the filter status window 501 corresponding to the first filter 231 .

Regarding the second filter 232, when the state of the second filter 232 is not in need of replacement, but the contamination level of the second filter 232 is within the range corresponding to the caution state (or replacement imminent state), 1 The controller 180 may display an image corresponding to the second filter 232 as a second type image (eg, a yellow image). In addition, the first controller 180 may display a message indicating that replacement of the second filter 232 is imminent or a current status of the second filter 232 through the filter status window 502 corresponding to the second filter 232 . contamination can be displayed.

Regarding the third filter 233 and the fourth filter 234, when the state of each of the third filter 233 and the fourth filter 234 corresponds to a state in which replacement is not required (ie, a good state) , The first controller 180 may display images corresponding to each of the third filter 233 and the fourth filter 234 as a third type image (eg, a blue image). In addition, the first controller 180 controls the third filter 233 and the fourth filter 234 through the filter status windows 503 and 504 corresponding to the third filter 233 and the fourth filter 234, respectively. A message indicating that each state is good or contamination levels of each of the current third filter 233 and fourth filter 234 may be displayed.

Although not shown, the first controller 180 may display information on replacement cycles of the filters 231 to 234 through the filter status windows 501 to 504 . Accordingly, the user can recognize that the replacement cycles of the filters are different from each other.

Also, the first controller 180 may display flow rate information of each of the filters 231 to 234 through the filter status windows 501 to 504 .

According to the embodiments shown in FIGS. 7 to 8 , the mobile terminal 100 may intuitively provide information about the filter state of the water purifier 200 to the user using augmented reality. Therefore, the user can easily check the state of the filter installed inside the water purifier 200 and difficult to check with the naked eye.

In addition, the mobile terminal 100 can improve the convenience of filter management by notifying the user of a filter replacement time point based on the filter state.

9 is a flowchart illustrating an operation in which a mobile terminal displays a filter state of a water purifier based on characteristics of supplied water received from a server using location information according to an embodiment of the present invention.

Referring to FIG. 9 , the mobile terminal 100 may receive flow rate information of each filter from the water purifier 200 (S300).

In this case, the second controller 250 of the water purifier 200 may generate flow rate information of each of the filters based on the flow rate information measured by the flowmeter 240 and the installation time of each filter. The second controller 250 may transmit flow rate information of each of the generated filters to the mobile terminal 100 .

The mobile terminal 100 may receive the characteristics of supply water supplied to the water purifier 200 from the server 300 based on the location information of the mobile terminal 100 (S310).

The first controller 180 may transmit the location information of the mobile terminal 100 obtained using the location information module 115 to the server 300 . According to an embodiment of the present invention, since the user is photographing the water purifier 200 using the mobile terminal 100, the location of the mobile terminal 100 and the water purifier 200 may be substantially the same.

The first controller 180 may receive the supply water characteristic based on the location information of the mobile terminal 100 from the server 300 . The characteristics of water (water supply, etc.) supplied to the water purifier 200 may differ from region to region. For example, the supply water of the first region may have a relatively high content of impurities, and the supply water of the second region may have a relatively high content of heavy metals. In this case, the replacement cycle of the impurity filter of the water purifier in the first region may be shorter than that of the water purifier in the second region, and the replacement cycle of the heavy metal filter of the water purifier in the second region may be shorter than that of the water purifier in the first region. .

Accordingly, the first controller 180 may receive the supplied water characteristics from the server 300 in order to more accurately generate state information of each of the filters based on the characteristics of the supplied water supplied to the water purifier 200 .

The mobile terminal 100 determines the state of each of the filters 231 to 234 based on the flow rate information of each of the filters 231 to 234 received from the water purifier 200 and the supplied water characteristics received from the server 300. Information can be generated (S320).

The first controller 180 controls the filters 231 to 234 based on flow rate information of each of the filters 231 to 234, supply water characteristics, and pollution degree information according to the flow rate of each filter stored in the first memory 170. 234) Each state information can be created directly. For example, the contamination level information according to the flow rate of each of the filters stored in the first memory 170 may mean information about supply water having standard characteristics. Accordingly, the first controller 180 may generate state information of each of the filters 231 to 234 by reflecting the characteristics of the supplied water.

Based on the state information of each of the generated filters, the mobile terminal 100 may display the state of each of the filters 231 to 234 on the image including the water purifier 200 (S330).

Since step S330 is similar to step S220 of FIG. 7 , a description thereof will be omitted.

That is, according to the embodiment shown in FIG. 9 , the mobile terminal 100 generates state information of each of the plurality of filters 231 to 234 included in the water purifier 200, which is supplied to the water purifier 200. More accurate status information can be created and provided using the characteristics of supply water.

10 is a flowchart for explaining an additional operation performed by a mobile terminal in relation to an embodiment of the present invention.

Referring to FIG. 10 , the mobile terminal 100 may transmit state information of each of the filters 231 to 234 of the water purifier 200 to the visiting manager's terminal through a network (S400).

The first controller 180 may transmit state information of each of the filters 231 to 234 received from the water purifier 200 to a terminal of a manager visiting the water purifier.

For example, the first control unit 180 may transmit the state information to the server 300, and the server 300 may transmit the received state information to the terminal of the visiting manager.

The mobile terminal 100 may receive visit schedule information based on the state information of each of the filters 231 to 234 from the terminal of the visit manager (S410).

The visit manager of the water purifier 200 may generate visit schedule information based on the received state information. For example, the visit manager may delay the visit schedule when all of the filters 231 to 234 are in good condition, and advance the visit schedule when at least one of the filters 231 to 234 needs to be replaced. .

The terminal of the visit manager may transmit the generated visit schedule information to the mobile terminal 100 . For example, the visit manager's terminal may transmit the visit schedule information to the server 300, and the server 300 may transmit the received visit schedule information to the mobile terminal 100.

The mobile terminal 100 may store the received visit schedule information (S420).

The first controller 180 may store the received visit schedule information in the first memory 170 . Depending on the embodiment, the first controller 180 may register the received visit schedule information in a schedule-related application installed in the mobile terminal 100 .

Based on the visit schedule information, the first controller 180 may provide a notification using the display unit 151 or the sound output unit 152 prior to the visit date or a predetermined period from the visit date.

That is, according to the embodiment shown in FIG. 10 , the user can conveniently receive a visiting service according to the filter state of the water purifier 200 . In addition, the visit manager can conveniently receive the user's water purifier filter state and conveniently adjust a visit schedule according to the user's water purifier filter state.

11A and 11B are exemplary diagrams of a filter purchasing function and a filter replacement guide provided through a mobile terminal.

Referring to FIG. 11A , the first controller 180 functions to purchase a filter (eg, the first filter 231) requiring replacement based on state information of each of the filters 231 to 234 of the water purifier 200. can provide.

Similar to the above with reference to FIG. 8 , the first controller 180 displays an image of each of the filters 231 to 234 and a filter status window 511 displaying the status of a filter requiring replacement among the filters 231 to 234 . ) may be displayed on the image 500. Although FIG. 11A shows that only the filter status window 511 for the first filter 231 in need of replacement is displayed on the image 500, the first controller 180 according to an embodiment may filter the filters ( 231 to 234) can also display the filter status window for each.

The first controller 180 displays a purchase menu 512 for providing a purchase function for the first filter 231 through the filter status window 511 for the first filter 231 in a state in which replacement is required. can do. When a request for selecting the purchase menu 512 is received, the first controller 180 may display a separate screen for purchase or delivery of the first filter 231 .

Referring to FIG. 11B , the first controller 180 may provide a replacement guide for replacing a filter installed in the water purifier 200 using augmented reality.

As the cover of the water purifier 200 is opened by the user, the filters 231 to 234 included in the water purifier 200 may be photographed by the camera 121 of the mobile terminal 100 . The first controller 180 may recognize each of the filters 231 to 234 included in the image 510 using an image recognition technique. When each of the filters 231 to 234 is recognized, the first controller 180 may identify a filter (eg, the first filter 231) to be replaced among the recognized filters 231 to 234. Based on the identification result, the first controller 180 may display a message for inducing separation of the first filter 231 from among the filters 231 to 234 included in the image 510 . Also, the first controller 180 may display the first filter 231 to be distinguished from the other filters 232 to 234 .

Based on the displayed message, the user may separate the first filter 231 of the filters 231 to 234 from the water purifier 200 and mount a new filter thereon.

According to the embodiments shown in FIGS. 11A and 11B , the mobile terminal 100 provides a filter purchase function to be replaced based on the filter state of the water purifier 200 or provides a filter replacement guide using augmented reality. can do. Accordingly, the user can conveniently purchase and replace the filter of the water purifier 200 .

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. there is 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.

Claims (19)

In a mobile terminal displaying a filter state of a water purifier using an augmented reality technique,
a camera acquiring an image of the water purifier;
a display unit displaying an image acquired by the camera; and
Receiving a request for displaying a filter state of the water purifier;
Receiving status information of each of a plurality of filters included in the water purifier from the water purifier based on the received filter status display request;
A control unit controlling the display unit to display a state of each of the plurality of filters on an image including the water purifier based on received state information;
The state information of each of the plurality of filters is generated based on flow rate information measured by a flow meter included in the water purifier and information about characteristics of supply water supplied to the water purifier,
The information on the characteristics of the supplied water includes information on the amount of impurities and heavy metals contained in the supplied water supplied to the area where the water purifier is installed, based on the location information of the water purifier received by the control unit from the server; ,
and determining state information of an impurity filter and a heavy metal filter among the plurality of filters according to the amount of impurities and heavy metals. According to claim 1,
Further comprising a memory in which an application supporting an augmented reality mode is stored,
The control unit,
As the application is executed, the augmented reality mode is entered,
When entering the augmented reality mode, obtaining an image including the water purifier using the camera;
Recognizing the water purifier from the acquired image;
A mobile terminal performing a connection with a recognized water purifier. According to claim 1,
The control unit,
The mobile terminal for transmitting a control command to the water purifier to transmit state information of each of the plurality of filters in response to the received filter state display request. According to claim 3,
The state information of each of the plurality of filters,
The mobile terminal that is generated further based on the installation time of each of the plurality of filters and contamination level information according to the flow rate of each of the plurality of filters stored in the water purifier. According to claim 4,
The state information of each of the plurality of filters,
The mobile terminal comprising a pollution level of each of the plurality of filters, which is obtained based on pollution level information according to a flow rate of each of the plurality of filters. According to claim 5,
The control unit,
Based on the state information of each of the plurality of filters received from the water purifier,
Displaying a filter image representing a state of each of the plurality of filters on an image including the water purifier;
A filter image of each of the plurality of filters is overlapped and displayed in an area corresponding to a position of each of the plurality of filters mounted on the water purifier. According to claim 6,
The filter image,
A mobile terminal having different types based on the state of each of the plurality of filters. According to claim 1,
The control unit,
Transmitting state information of each of the plurality of filters to a visiting manager terminal of the water purifier;
Receiving visit schedule information based on the status information from the visit manager terminal;
A mobile terminal that stores the received visit schedule information. A computer-readable recording medium on which a program for performing a method of displaying a filter state of a water purifier using an augmented reality technique is recorded, the method comprising:
obtaining an image including a water purifier using a camera of a mobile terminal in which the program is executed;
displaying the acquired image through a display unit of the mobile terminal;
receiving a filter state display request of the water purifier included in the displayed image;
receiving state information of each of a plurality of filters included in the water purifier from the water purifier based on the received filter state display request; and
Based on the received state information, displaying a state of each of the plurality of filters on an image including the water purifier,
The state information of each of the plurality of filters is generated based on flow rate information measured by a flow meter included in the water purifier and information about characteristics of supply water supplied to the water purifier,
The information on the characteristics of the supply water includes information on the amount of impurities and heavy metals contained in the supply water supplied to the area where the water purifier is installed, based on the location information of the water purifier received by the controller from the server;
and determining state information of an impurity filter and a heavy metal filter among the plurality of filters according to the amounts of impurities and heavy metals. According to claim 9,
Acquiring the image is
entering an augmented reality mode as the program is executed;
acquiring an image including the water purifier using the camera when entering the augmented reality mode;
Recognizing the water purifier from the obtained image; and
A computer-readable recording medium comprising performing a connection with a recognized water purifier. According to claim 9,
The state information of each of the plurality of filters,
A computer-readable recording medium that is generated further based on contamination level information according to a mounting time of each of the plurality of filters and a flow rate of each of the plurality of filters stored in the water purifier. According to claim 11,
The state information of each of the plurality of filters,
A computer-readable recording medium comprising a contamination level of each of the plurality of filters, which is obtained based on contamination level information according to a flow rate of each of the plurality of filters. According to claim 12,
The display step is
Based on the state information, displaying a filter image representing a state of each of the plurality of filters on an image including the water purifier,
The filter image of each of the plurality of filters is overlapped and displayed in an area corresponding to a position of each of the plurality of filters mounted on the water purifier. According to claim 13,
The filter image,
A computer-readable recording medium having different types based on the state of each of the plurality of filters. In a mobile terminal displaying a filter state of a water purifier using an augmented reality technique,
a camera acquiring an image of the water purifier;
a display unit displaying an image acquired by the camera; and
receiving flow rate information of each of a plurality of filters included in the water purifier from the water purifier;
Receiving information including characteristics of supply water supplied to the water purifier from a server connected to the mobile terminal based on location information of the mobile terminal;
Based on the received flow rate information and supply water characteristics, a control unit for generating state information of each of the plurality of filters,
The information on the characteristics of the supply water includes information on the amount of impurities and heavy metals contained in the supply water supplied to the area where the water purifier is installed based on the location information of the mobile terminal;
and determining state information of an impurity filter and a heavy metal filter among the plurality of filters according to the amount of impurities and heavy metals. According to claim 15,
The control unit,
Based on the generated state information, the mobile terminal displays the state of each of the plurality of filters on the image including the water purifier. According to claim 15,
Flow rate information of each of the plurality of filters,
A mobile terminal generated based on a flow rate measured by a flow meter included in the water purifier and mounting timing of each of the plurality of filters. According to claim 15,
The control unit,
A mobile terminal generating state information of each of the plurality of filters based on flow rate information of each of the plurality of filters, characteristics of the supply water, and pollution degree information according to flow rate of each of the plurality of filters stored in the mobile terminal . According to claim 15,
The control unit,
Based on the state information of each of the plurality of filters,
Displaying a filter image representing a state of each of the plurality of filters on an image including the water purifier;
A filter image of each of the plurality of filters is overlapped and displayed in an area corresponding to a position of each of the plurality of filters mounted on the water purifier.

Images