KR20170009589A - Wearable device and operating method thereof - Google Patents

Abstract

An operating method of a wearable device is disclosed. The operating method of a wearable device according to the present invention includes the steps of: obtaining data which is a basis for measuring oxygen saturation in the blood of a user of the wearable device; and obtaining information about a drowsy state of the user by using the oxygen saturation measured based on the data. Accordingly, the present invention can determine whether the user is drowsy by using the oxygen saturation of the user.

Description

[0001] WEARABLE DEVICE AND OPERATING METHOD THEREOF [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wearable device capable of determining whether a user is sleeping using a user's oxygen saturation and an operation method thereof.

As the driver continues to breathe in the enclosed vehicle, the amount of oxygen in the car gradually decreases, and on the contrary, carbon dioxide increases gradually. In addition, lack of oxygen to breathe in the car accumulates fatigue in the central nervous system of the brain, resulting in decreased sensory function and drowsiness.

There are various techniques for detecting the drowsiness of a user during driving in order to prevent accidents caused by drowsiness driving. For example, there is a technique of measuring or analyzing a user's electrocardiogram or analyzing a user to determine whether the user's state is in a drowsy state.

However, there has been a problem in that a sleeping prevention technique using the electrocardiogram of a user has to acquire a biological signal by restraining two or more parts of the human body, and a technology for photographing a user and using a photographed image requires a device for a camera and an image processing There is a space and a cost problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a wearable device and a method of operating the wearable device which can determine whether a user is sleeping by using a user's oxygen saturation.

A method of operating a wearable device according to an embodiment of the present invention includes the steps of obtaining data that is a basis for measuring oxygen saturation in the blood of the wearable device user and using the oxygen saturation measured based on the data And acquiring information on whether the user is in a drowsy state.

Meanwhile, the wearable device according to the embodiment of the present invention may include a first sensing unit for acquiring data on which the wearable device user bases the measurement of oxygen saturation in the blood, and a second sensing unit for measuring the oxygen saturation And a controller for acquiring information on whether the user is in a drowsy state.

1 is a block diagram illustrating a portable device related to the present invention.
2 is a perspective view showing an example of a watch-type mobile terminal according to the present invention.
3 is a flowchart for explaining a method of operating a wearable device according to an embodiment of the present invention.
4 is a diagram for describing the first sensing unit in detail.
5 is a diagram for explaining a method of determining whether a user is in a drowsy state by using oxygen saturation in blood of a user.
6 is a view for explaining a method of determining whether a user is in a drowsy state by using a motion detection of a user during driving.
7 is a diagram for explaining a method of determining whether a user is in a drowsy state by using a movement pattern of a user during operation.
8 is a view for explaining a method of outputting a guide for preventing the user from drowsing when the user is in a drowsy state.
9 is a diagram showing a watch-type mobile terminal 100 interlocked with a plurality of apparatuses in a vehicle.
10 is a table showing the time when the user is in a drowsy state in a table form.
11 is a diagram for explaining a guiding method for preventing drowsiness of a user.
12 is a diagram illustrating a watch-type mobile terminal communicating with one or more external devices constituting a home network system.
13 is a view showing a watch-type mobile terminal on which a UI capable of operating an external device in a sleep mode is displayed.
FIG. 14 is a flowchart illustrating a method of operating a wearable device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

1 is a block diagram for explaining a wearable device related to the present invention.

In this embodiment, a wearable device will be described as an example of a watch-type mobile terminal.

The watch-type mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a third sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a control unit 180, A power supply unit 190, and the like. The components shown in FIG. 1 are not essential for implementing a portable device, so that the portable device described in this specification can have more or less components than the components listed above.

More specifically, the wireless communication unit 110 among the above-mentioned components can communicate with the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and other portable devices, or between the mobile terminal 100 and the external server, And may include one or more modules to enable communication. In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of a broadcast receiving 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 an image input unit for inputting a video signal, a microphone 122 for inputting an audio signal, an audio input unit, a user input unit 123 for receiving information from a user A touch key, a mechanical key, and the like). The voice data or image data collected by the input unit 120 may be analyzed and processed by a user's control command.

The third sensing unit 140 may include at least one sensor for sensing at least one of a watch-type mobile terminal information, a surrounding-environment information surrounding the watch-type mobile terminal, and user information. For example, the third sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor sensor, an optical sensor (e.g., see camera 121), a microphone (see microphone 122), a battery gauge, an environmental sensor (e.g., barometer, hygrometer, thermometer, A sensor, a thermal sensor, a gas sensor, etc.), a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal 100 disclosed in this specification can combine and utilize the information sensed by at least two of the sensors.

The output unit 150 includes at least one of a display unit 151, an acoustic output unit 152, a haptic tip module 153, and a light output unit 154 to generate an output related to visual, auditory, can do. The display unit 151 may have a mutual layer structure with the touch sensor or may be integrally formed to realize a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and a user and may provide an output interface between the mobile terminal 100 and a user.

The interface unit 160 serves as a path to various types of external devices connected to the mobile terminal 100. The interface unit 160 is connected to a device having a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, And may include at least one of a port, an audio I / O port, a video I / O port, and an earphone port. In the mobile terminal 100, corresponding to the connection of the external device to the interface unit 160, it is possible to 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 or applications running on the mobile terminal 100, data for operation of the mobile terminal 100, and commands. At least some of these applications may be downloaded from an external server via wireless communication. Also, at least a part of these application programs may exist on the mobile terminal 100 from the time of shipment for the basic functions (e.g., telephone call receiving function, message receiving function, and calling function) of the mobile terminal 100. The application program may be stored in the memory 170 and installed on the mobile terminal 100 and may be operated by the control unit 180 to perform the operation (or function) of the mobile terminal 100. [

In addition to the operations associated with the application program, the control unit 180 typically controls the overall operation of the portable device 100. [ The control unit 180 may process or process signals, data, information, and the like input or output through the above-mentioned components, or may drive an application program stored in the memory 170 to provide or process appropriate information or functions to the user.

In addition, the controller 180 may control at least some of the components illustrated in FIG. 1 in order to drive an application program stored in the memory 170. In addition, the controller 180 may operate at least two of the components included in the mobile terminal 100 in combination with each other for driving the application program.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power to the components included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be an internal battery or a replaceable battery.

At least some of the components may operate in cooperation with one another to implement a method of operation, control, or control of a mobile terminal according to various embodiments described below. In addition, the method of operation, control, or control of the mobile terminal may be implemented on the mobile terminal by driving at least one application program stored in the memory 170.

Hereinafter, the components listed above will be described in more detail with reference to FIG. 1 before explaining various embodiments implemented through the mobile terminal 100 as described above.

First, referring to the wireless communication unit 110, the broadcast receiving module 111 of the wireless communication unit 110 receives broadcast signals 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 to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.

The mobile communication module 112 may be a mobile communication module or a mobile communication module such as a mobile communication module or a mobile communication module that uses technology standards or a communication method (e.g., Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) And an external terminal, or a server on a mobile communication network established according to a long term evolution (e. G., Long Term Evolution-Advanced).

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

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. The wireless Internet module 113 is configured to transmit and receive a wireless signal in a communication network according to wireless Internet technologies.

Wireless Internet technologies include, for example, wireless LAN (WLAN), wireless fidelity (Wi-Fi), wireless fidelity (Wi-Fi) Direct, DLNA (Digital Living Network Alliance), WiBro Interoperability for Microwave Access, High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE) and Long Term Evolution-Advanced (LTE-A) 113 transmit and receive data according to at least one wireless Internet technology, including Internet technologies not listed above.

The wireless Internet module 113 for performing a wireless Internet connection through the mobile communication network can be used for wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE or LTE- 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) (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology. The short-range communication module 114 is connected to the mobile terminal 100 and the wireless communication system through the wireless area networks, between the mobile terminal 100 and another mobile terminal 100, or between the mobile terminal 100 ) And the other mobile terminal 100 (or the external server). The short-range wireless communication network may be a short-range wireless personal area network.

The short-range communication module 114 may detect (or recognize) another mobile terminal that can communicate with the mobile terminal 100. The control unit 180 may transmit at least a part of the data processed in the mobile terminal 100 to the short distance communication module 114 when the other mobile terminal is an authorized device to communicate with the mobile terminal 100 according to the present invention. Lt; / RTI > to another mobile terminal. Accordingly, the user of another mobile terminal can use the data processed by the mobile terminal 100 through another mobile terminal. For example, according to the present invention, when a call is received in the mobile terminal 100, the user performs a telephone conversation with the other mobile terminal, or when a message is received in the mobile terminal 100, It is possible to confirm the received message.

The position information module 115 is a module for obtaining the position (or current position) of the mobile terminal, and a representative example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when the mobile terminal utilizes the GPS module, it can acquire the position of the mobile terminal by using a signal transmitted from the GPS satellite. As another example, when the mobile terminal utilizes the Wi-Fi module, it can acquire the position of the mobile terminal based on information of a wireless access point (AP) that transmits or receives the wireless signal with the Wi-Fi module. Optionally, the location information module 115 may perform any of the other functions of the wireless communication unit 110 to obtain data relating to the location of the mobile terminal, in addition or alternatively. 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 obtains the location of the mobile terminal.

Next, the input unit 120 is for inputting image information (or signal), audio information (or signal), data, or information input from a user. For inputting image information, Or a plurality of cameras 121 may be provided. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. [ A plurality of cameras 121 provided in the mobile terminal 100 may be arranged to have a matrix structure and various angles or foci may be provided to the mobile terminal 100 through the camera 121 having the matrix structure A plurality of pieces of image information can be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure to acquire a left image and a right image for realizing a stereoscopic image.

The microphone 122 processes the external acoustic signal into electrical voice data. The processed voice data can be utilized variously according to a function (or a running application program) being executed in the mobile terminal 100. Meanwhile, the microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 123 is for receiving information from a user and when the information is inputted 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 . The user input unit 123 may include a mechanical input unit (or a mechanical key such as a button located on the front / rear or side of the mobile terminal 100, a dome switch, a jog wheel, Jog switches, etc.) and touch-type input means. For example, the touch-type input means may comprise a virtual key, a soft key or a visual key displayed on the touch screen through software processing, And a touch key disposed on the touch panel. Meanwhile, the virtual key or the visual key can be displayed on a touch screen having various forms, for example, a graphic, a text, an icon, a video, As shown in FIG.

The third sensing unit 140 senses at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information, and generates a corresponding sensing signal. The control unit 180 may control the driving or operation of the mobile terminal 100 or may perform data processing, function or operation related to the application program installed in the mobile terminal 100 based on the sensing signal. Representative sensors among various sensors that can be included in the third sensing unit 140 will be described in more detail.

First, the proximity sensor 141 refers to a sensor that detects the presence of an object approaching a predetermined detection surface, or the presence of an object in the vicinity of the detection surface, without mechanical contact by using electromagnetic force or infrared rays. The proximity sensor 141 may be disposed in the inner area of the mobile terminal or in proximity to the touch screen, which is covered by 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 capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. In the case where the touch screen is electrostatic, the proximity sensor 141 can be configured to detect the proximity of the object with a change of the electric field along the proximity of the object having conductivity. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

On the other hand, for convenience of explanation, the act of recognizing that the object is located on the touch screen in proximity with no object touching the touch screen is referred to as "proximity touch & The act of actually touching an object on the screen is called a "contact touch. &Quot; The position at which the object is closely touched on the touch screen means a position where the object corresponds to the touch screen vertically when the object is touched. The proximity sensor 141 can detect a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, have. Meanwhile, the control unit 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern sensed through the proximity sensor 141 as described above, and further provides visual information corresponding to the processed data It can be output on the touch screen. Furthermore, the control unit 180 can control the mobile terminal 100 such that different operations or data (or information) are processed according to whether the touch to the same point on the touch screen is a proximity touch or a touch touch .

The touch sensor 142 may be a touch sensor or a touch sensor that is applied to the touch screen (or the display unit 151) using at least one of various touch methods such as a resistance film type, a capacitive type, an infrared type, an ultrasonic type, Input).

As an example, the touch sensor 142 may be configured to convert a change in a pressure applied to a specific portion of the touch screen or a capacitance generated in a specific portion to an electrical input signal. The touch sensor 142 may be configured to detect a position, an area, a pressure at the time of touch, a capacitance at the time of touch, and the like where the touch target object touching the touch screen is touched on the touch sensor 142 . Here, the touch object may be a finger, a touch pen, a stylus pen, a pointer, or the like as an object to which a touch is applied to the touch sensor.

Thus, when there is a touch input to the touch sensor 142, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like. Here, the touch controller may be a separate component from the control unit 180, and may be the control unit 180 itself.

On the other hand, the control unit 180 may perform different controls or perform the same control according to the type of the touch object touching the touch screen (or a touch key provided on the touch screen). Whether to perform different controls or to perform the same control according to the type of the touch object can be determined according to the operating state of the mobile terminal 100 of the current watch type or the running application program.

The touch sensor 142 and the proximity sensor 141 described above may be used independently or in combination to provide a short touch, a long touch, a multi touch, Touch, drag, touch, flick touch, pinch-in touch, pinch-out touch, swype touch, hovering touch And the like can be sensed in various ways.

The first sensing unit 130 may measure oxygen saturation in the blood of a watch-type mobile terminal 100 user. The operation of the first sensing unit 130 will be described with reference to FIG. 4A.

The second sensing unit 135 may sense the motion of the display device user. The second sensing unit 135 senses the movement of the watch-type mobile terminal 100 and transmits a signal corresponding to the motion of the mobile terminal to the controller (not shown) if the user is carrying the watch- 180). The control unit 180 can detect information related to motion such as a direction, a motion angle, a motion speed, an intensity, a current position, a rotation direction, and a rotation angle of the portable terminal from a signal generated by the second sensing unit 135.

The second sensing unit 135 may include various sensing means such as a gravity sensor, a geomagnetic sensor, a gyro sensor, an acceleration sensor, a tilt sensor, an altitude sensor, a depth sensor, a gyroscope sensor, an angular velocity sensor, and a GPS sensor.

The camera 121 includes at least one of a camera sensor (for example, a CCD, a CMOS, etc.), a photo sensor (or an image sensor), and a laser sensor.

The camera 121 and the laser sensor may be combined with each other to sense a touch of the sensing object with respect to the three-dimensional stereoscopic image. The photosensor can be laminated to the display element, which is adapted to scan the movement of the object to be detected proximate to the touch screen. More specifically, the photosensor mounts photo diodes and TRs (Transistors) in a row / column and scans the contents loaded on the photosensor using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor performs coordinate calculation of the object to be sensed according to the amount of change of light, and position information of the object to be sensed can be obtained through the calculation.

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 by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

The sound 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 mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output unit 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output unit 152 may include a receiver, a speaker, a buzzer, and the like.

The haptic module 153 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 153 may be vibration. The intensity and pattern of the vibration generated in the haptic module 153 can be controlled by the user's selection or the setting of the control unit. For example, the haptic module 153 may synthesize and output different vibrations or sequentially output the vibrations.

In addition to vibration, the haptic module 153 may be configured to perform various functions such as a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or suction force of the air through the injection port or the suction port, a touch on the skin surface, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 153 can transmit the tactile effect through the direct contact, and the tactile effect can be felt by the user through the muscles of the finger or arm. The haptic module 153 may include two or more haptic modules 153 according to the configuration of the mobile terminal 100.

The light output unit 154 outputs a signal for notifying the occurrence of an event using the light of the light source of the mobile terminal 100. Examples of events that occur in the mobile terminal 100 may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.

The signal output from the light output unit 154 is implemented as the mobile terminal emits light of a single color or a plurality of colors to the front or rear surface. The signal output may be terminated by the mobile terminal detecting the event confirmation of the user.

The interface unit 160 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 160 receives data from an external device or supplies power to each component in the mobile terminal 100 or allows data in the mobile terminal 100 to be transmitted to an external device. For example, a port for connecting a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, an audio I / O port, a video I / O port, an earphone port, and the like may be included in the interface unit 160.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM) A universal subscriber identity module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the interface unit 160. [

The interface unit 160 may be a path through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, And various command signals may be transmitted to the mobile terminal 100. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The memory 170 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 170 may store data on vibration and sound of various patterns outputted 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, an SDD type (Silicon Disk Drive type), a multimedia card micro type ), Card type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read memory, a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs the storage function of the memory 170 on the Internet.

Meanwhile, as described above, the control unit 180 controls the operations related to the application program and the general operation of the mobile terminal 100. [ For example, when the state of the mobile terminal meets a set condition, the controller 180 can execute or release a lock state for restricting input of a user's control command to applications.

In addition, the control unit 180 performs control and processing related to voice communication, data communication, video call, or the like, or performs pattern recognition processing to recognize handwriting input or drawing input performed on the touch screen as characters and images, respectively . Further, the control unit 180 may control any one or a plurality of the above-described components in order to implement various embodiments described below on the watch-type 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 operation of the respective components. The power supply unit 190 includes a battery, the battery may be an internal battery configured to be chargeable, and may be detachably coupled to the terminal body for charging or the like.

In addition, the power supply unit 190 may include a connection port, and the connection port may be configured as an example of an interface 160 through which an external charger for supplying power for charging the battery is electrically connected.

As another example, the power supply unit 190 may be configured to charge the battery in a wireless manner without using the connection port. In this case, the power supply unit 190 may use at least one of an inductive coupling method based on the magnetic induction phenomenon and a magnetic resonance coupling based on the electromagnetic resonance phenomenon from an external wireless power transmission apparatus Power can be delivered.

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

First, the communication system may use different wireless interfaces and / or physical layers. For example, wireless interfaces that can be used by a communication system include Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA) ), Universal mobile telecommunication systems (UMTS) (in particular Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A)), Global System for Mobile Communications May be included.

Hereinafter, for the sake of convenience of description, the description will be limited to CDMA. However, it is apparent that the present invention can be applied to all communication systems including an OFDM (Orthogonal Frequency Division Multiplexing) wireless communication system as well as a CDMA wireless communication system.

A CDMA wireless communication system includes at least one terminal 100, at least one base station (BS) (also referred to as a Node B or Evolved Node B), at least one Base Station Controllers (BSCs) , And a Mobile Switching Center (MSC). The MSC is configured to be coupled to a Public Switched Telephone Network (PSTN) and BSCs. The BSCs may be paired with the BS via 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 may be included in a CDMA wireless communication system.

Each of the plurality of BSs may comprise at least one sector, and each sector may comprise an omnidirectional antenna or an antenna pointing to a particular direction of radial emission from the BS. In addition, each sector may include two or more antennas of various types. Each BS may be configured to support a plurality of frequency assignments, and a plurality of frequency assignments may each have a specific spectrum (e.g., 1.25 MHz, 5 MHz, etc.).

The intersection of sector and frequency assignment may be referred to as a CDMA channel. The BS may be referred to as a base station transceiver subsystem (BTSs). In this case, a combination of one BSC and at least one BS may be referred to as a " base station ". The base station may also indicate a "cell site ". Alternatively, each of the plurality of sectors for a particular BS may be referred to as a plurality of cell sites.

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

In addition, a Global Positioning System (GPS) may be associated with the CDMA wireless communication system to identify the location of the mobile terminal 100. The satellite 300 aids in locating the mobile terminal 100. Useful location information may be obtained by two or more satellites. Here, the position of the mobile terminal 100 can be tracked using all the techniques capable of tracking the location as well as the GPS tracking technology. Also, at least one of the GPS satellites may optionally or additionally be responsible for satellite DMB transmissions.

The location information module 115 included in the mobile terminal is for detecting, computing, or identifying the location of the mobile terminal, and may include a Global Position System (GPS) module and a WiFi (Wireless Fidelity) module. Optionally, the location information module 115 may perform any of the other functions of the wireless communication unit 110 to obtain data relating to the location of the mobile terminal, in addition or alternatively.

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 three-dimensional current location information according to latitude, longitude, and altitude can do. At present, a method of calculating position and time information using three satellites and correcting an error of the calculated position and time information using another satellite is widely used. In addition, the GPS module 115 can calculate speed information by continuously calculating the current position in real time. However, it is difficult to accurately measure the position of the mobile terminal by using the GPS module in the shadow area of the satellite signal as in the room. Accordingly, a WPS (WiFi Positioning System) can be utilized to compensate the positioning of the GPS system.

The WiFi Positioning System (WPS) is a system in which a mobile terminal 100 uses a WiFi module included in the mobile terminal 100 and a wireless AP (wireless access point) transmitting or receiving a wireless signal with the WiFi module, Is a technology for tracking a location of a wireless local area network (WLAN) using WiFi.

The WiFi location tracking system may include a Wi-Fi location server, a mobile terminal 100, a wireless AP connected to the mobile terminal 100, and a database in which certain wireless AP information is stored.

The mobile terminal 100 connected to the wireless AP can transmit the location information request message to the Wi-Fi location server.

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

The information of the wireless AP to be extracted based on the location information request message of the mobile terminal 100 includes a MAC address, an SSID (Service Set IDentification), a Received Signal Strength Indicator (RSSI), a Reference Signal Received Power (RSRP) Reference Signal Received Quality), channel information, Privacy, Network Type, Signal Strength, and Noise Strength.

As described above, the Wi-Fi position location server can receive the information of the wireless AP connected to the mobile terminal 100 and extract the wireless AP information corresponding to the wireless AP to which the mobile terminal is connected from the pre-established database. In this case, the information of any wireless APs stored in the database includes at least one of MAC address, SSID, channel information, privacy, network type, radius coordinates of the wireless AP, building name, Available), the address of the AP owner, telephone number, and the like. At this time, in order to remove the wireless AP provided using the mobile AP or the illegal MAC address in the positioning process, the Wi-Fi location server may extract only a predetermined number of wireless AP information in order of RSSI.

Then, the Wi-Fi location server can extract (or analyze) the location information of the mobile terminal 100 using at least one wireless AP information extracted from the database. And compares the received information with the received wireless AP information to extract (or analyze) the location information of the mobile terminal 100.

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

The Cell-ID method is a method of determining the position of the mobile station with the strongest signal strength among neighboring wireless AP information collected by the mobile terminal. Although the implementation is simple, it does not cost extra and it can acquire location information quickly, but there is a disadvantage that positioning accuracy is lowered when the installation density of the wireless AP is low.

The fingerprint method collects signal strength information by selecting a reference position in a service area, and estimates the position based on the signal strength information transmitted from the mobile terminal based on the collected information. In order to use the fingerprint method, it is necessary to previously convert the propagation characteristics into a database.

The triangulation method is a method of calculating the position of the mobile terminal based on the coordinates of at least three wireless APs and the distance between the mobile terminals. (Time of Arrival, ToA), Time Difference of Arrival (TDoA) in which a signal is transmitted, and the time difference between the wireless AP and the wireless AP, in order to measure the distance between the mobile terminal and the wireless AP. , An angle at which a signal is transmitted (Angle of Arrival, AoA), or the like.

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

Various algorithms can be utilized as a method for extracting (or analyzing) the location information of the mobile terminal.

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

The mobile terminal 100 may be connected to at least one wireless AP to obtain location information. 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.

Meanwhile, some components of the mobile terminal 100 may be omitted or changed.

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

However, the present invention is not limited to this, and may be applied to any device capable of measuring the walking speed and heart rate of a user while being able to carry the user, .

Also, the portable device may be a wearable device, and the portable device may be a watch-type mobile device of a wearable device. An embodiment in which a portable device is implemented as a wearable device will be described with reference to FIG.

2 is a perspective view showing an example of a watch-type mobile terminal according to the present invention.

The watch-type mobile terminal 100 shown in FIG. 2 may include all the components shown in FIG.

The display unit 251 of the watch-type mobile terminal 100 shown in FIG. 2 may have a circular shape, but is not limited thereto, and may have an elliptical shape or a rectangular shape. The shape of the display unit 251 of the present invention may be any shape that can give a visually good image to the user and help the user to operate the touch screen.

2, a watch-type mobile terminal 100 includes a main body 201 having a display unit 251 and a band 202 connected to the main body 201 and configured to be worn on the wrist. The display unit 251 may correspond to a touch screen.

The main body 201 includes a case that forms an appearance. As shown, the case may include a first case 201a and a second case 201b that provide an internal space for accommodating various electronic components. However, the present invention is not limited to this, and one case may be configured to provide the internal space, so that a unibody watch-type mobile terminal 100 may be realized.

The watch-type mobile terminal 100 is configured to enable wireless communication, and the main body 201 may be provided with an antenna for wireless communication. On the other hand, the antenna can expand its performance by using a case. For example, a case including a conductive material may be configured to electrically connect with the antenna to extend the ground or radiating area.

A display unit 251 may be disposed on the front surface of the main body 201 to output information and a touch sensor may be provided on the display unit 251 to implement the touch screen. The window 251a of the display unit 251 may be mounted on the first case 201a to form a front surface of the terminal body together with the first case 201a.

The main body 201 may include an audio output unit 252, a camera 221, a microphone 222, a user input unit 223, and the like. When the display unit 251 is implemented as a touch screen, the display unit 251 may function as a user input unit 223, so that the main body 201 may not have a separate key.

The band 202 is worn on the wrist so as to surround the wrist, and may be formed of a flexible material for easy wearing. As an example, the band 202 may be formed of leather, rubber, silicone, synthetic resin, or the like. In addition, the band 202 may be detachably attached to the main body 201, and may be configured to be replaceable by various types of bands according to the user's preference.

On the other hand, the band 202 can be used to extend the performance of the antenna. For example, the band may include a ground extension (not shown) that is electrically connected to the antenna and extends the ground region.

The band 202 may be provided with a fastener 202a. The fastener 202a may be embodied by a buckle, a snap-fit hook structure, or a velcro (trademark), and may include a stretchable section or material . In this drawing, an example in which the fastener 202a is embodied as a buckle is shown.

3 is a flowchart for explaining a method of operating a wearable device according to an embodiment of the present invention.

Referring to FIG. 3, an operation method of a wearable device according to an embodiment of the present invention includes obtaining data (S310) that is a basis for measuring oxygen saturation in blood of a wearable device user (S310), detecting movement of a wearable device user (S330), obtaining information on whether the user is in a drowsy state using the oxygen saturation and the movement pattern of the user measured on the basis of the data (S330), and when the user is in a drowsy state, (S340). When information on whether the user is in a drowsy state is obtained a plurality of times, a step of obtaining a drowsiness pattern of the user using the information obtained a plurality of times (S350) And outputting a guide for preventing the user's drowsiness at a time when the user's drowsiness is expected (S360).

The first sensor unit 130 can measure the oxygen saturation in the blood of the wearable device user in connection with the step S310 of obtaining data based on the measurement of oxygen saturation in the blood of the wearable device user. This will be described in detail with reference to FIG.

4 is a view for explaining the first sensor unit in detail.

4A is a block diagram for explaining the configuration of the first sensing unit.

Human blood consists of plasma and blood cells (red blood cells, white blood cells and platelets) and one of its main roles is the transport of oxygen.

Oxygen is essential to ensure that the function of each cell in the human body is maintained normally. If the amount of oxygen is reduced, the intracellular energy metabolism of the tissue is limited, and if the oxygen is not supplied for a long time, the body's activity may be stopped. It is the hemoglobin contained within the red blood cells that is responsible for this important supply of oxygen.

In the present invention, the measurement of oxygen saturation can be performed by irradiating blood with light having a first wavelength and light having a second wavelength, and the absorption rate of the first wavelength and the second wavelength varying depending on the amount of oxygen attached to the hemoglobin in the blood .

Here, the light having the first wavelength may be infrared (IR), and the light having the second wavelength may be red (R) light.

Hereinafter, it is assumed that the light having the first wavelength is infrared (IR) and the light having the second wavelength is red (R) light. However, the light having the first wavelength and the light having the second wavelength are not limited to the infrared ray (IR) and the red light (R), respectively.

In addition, the light emitting diode (LED) used in the light emitting unit is exemplified, but the light emitting diode may be a laser diode (LD), a lamp, or the like .

The light emitting unit 131 may include an infrared LED for emitting infrared light and a red LED for emitting red light. The infrared light and the red light emitted from the light emitting part 131 are reflected by the hemoglobin in the blood and then enter the light receiving part 132. In this case, since the absorption rate of the infrared light and the red light is changed according to the amount of oxygen bound to the hemoglobin, the intensity of the infrared light and the red light received by the light receiving part 132 also varies.

The light receiving unit 132 receives the reflected infrared light and the red light, and outputs the received infrared light and the red light as an electrical signal. That is, the first sensing unit 130 may acquire the data of the magnitude of the reflected infrared rays and the red light, and may transmit the acquired data to the controller 180 in the form of an electrical signal. To this end, the light receiving unit 132 may include a photodiode that outputs infrared light and red light as an electrical signal.

4B is a view for explaining a mounting position of the first sensing unit in a watch-type mobile terminal.

4B, the first sensing unit 130 may be located on the rear side of the watch-type mobile terminal 100, that is, on the opposite side of the display unit 151 of the watch-type mobile terminal 100. The light emitting portion 131 and the light receiving portion 132 may be located on the same plane. Accordingly, the light emitting unit 131 can emit infrared rays and red light toward the user's body, and the light receiving unit 132 can receive infrared rays and red light reflected from blood hemoglobin.

Meanwhile, although the light emitting unit 131 and the light receiving unit 132 are disposed on the same plane in the present embodiment, the present invention is not limited thereto.

Specifically, the light emitting portion 131 and the light receiving portion 132 may be arranged to face each other. For example, the light emitting unit 131 may be located on the rear side of the watch-type mobile terminal 100, that is, on the opposite side of the display unit 151 of the watch-type mobile terminal 100, May be located in the band 202 or the fastener 202a.

In the above embodiment, the oxygen saturation is measured using the reflectance of light. However, when the light emitting unit 131 and the light receiving unit 132 are disposed opposite to each other, the oxygen saturation can be measured using the light transmittance. Specifically, since the absorption rate of infrared rays and red light changes according to the amount of oxygen bound to hemoglobin, the transmittance of infrared rays and red light also changes. Accordingly, the intensity of the infrared light and the red light received by the light receiving unit 132 is varied, and the oxygen saturation can be measured using the infrared light and the red light.

Referring again to FIG. 3, the method of operating the wearable device according to the embodiment of the present invention may include detecting the movement of the wearable device user (S320). The second sensing unit 135 senses the movement of the watch-type mobile terminal 100 and transmits a signal corresponding to the motion of the mobile terminal to the controller (not shown) if the user is carrying the watch- 180). The control unit 180 can detect information related to motion such as a direction, a motion angle, a motion speed, an intensity, a current position, a rotation direction, and a rotation angle of the portable terminal from a signal generated by the second sensing unit 135.

Meanwhile, an operation method of a wearable device according to an embodiment of the present invention may include a step S330 of obtaining information on whether a user is in a drowsy state using oxygen saturation measured based on data and a user's movement pattern have.

Meanwhile, in order to obtain information on whether the user is in the drowsy state, both the oxygen saturation and the user's movement pattern can be used. However, information on whether the user is drowsy can be obtained by using only the oxygen saturation or using only the movement pattern of the user Can be obtained.

A method of acquiring information on whether the user is in a drowsy state using the oxygen saturation will be described with reference to FIG.

5 is a diagram for explaining a method of determining whether a user is in a drowsy state by using oxygen saturation in blood of a user.

The controller 180 can measure the oxygen saturation of the user based on the data received from the first sensing unit 130. Specifically, when the intensity of the infrared or red light reflected by the first sensing unit 130 is converted into an electrical signal and transmitted to the controller 180, the controller 180 calculates the degree of optical attenuation of the infrared light and the red light from the received electrical signal Can be obtained. More specifically, the control unit 180 compares the intensity of the light emitted from the light emitting unit 131 of the first sensing unit 130 with the intensity of the light received by the light receiving unit 132 to determine the degree of light attenuation of the infrared light and the red light And the oxygen saturation in the blood can be measured using the difference (-) of the light attenuation degree of the obtained infrared light and red light.

On the other hand, the controller 180 can obtain information on whether the user is in a drowsy state using the measured oxygen saturation.

Specifically, as shown in FIG. 5, the controller 180 can determine that the user is in a drowsy state when the oxygen saturation is lower than a normal value by a predetermined value or more.

For example, when the normal value of the oxygen saturation is 98% and the specific value is 0.5%, if the oxygen saturation measured by the controller 180 is lower than 97.5%, the controller 180 determines that the user is currently in a drowsy state can do. Here, the normal value may be a statistically obtained oxygen saturation value of a general person, and may be a value obtained by continuously measuring oxygen saturation of a watch-type mobile terminal 100 user.

On the other hand, information on whether the user is in the drowsy state can be obtained by using the movement pattern of the user.

This will be described in FIGS. 6 to 7. FIG.

6 is a view for explaining a method of determining whether a user is in a drowsy state by using a motion detection of a user during driving.

6A is a view showing a state of a user operating in a state in which the user is not sleeping.

As shown in FIG. 6A, when the user is in a state of not sleeping, the user can manipulate the handle or show other movements. In this case, the second sensing unit 135 can sense motion of the watch-type mobile terminal 100 and output a signal corresponding to the movement of the user to the control unit 180.

 The control unit 180 uses the signal received from the second sensing unit 135 to obtain information related to motions such as a movement direction, a movement angle, a movement speed, an intensity, a current position, a rotation direction, Can be obtained.

When the motion of the user is detected, the controller 180 can acquire information that the user is not currently in a state of coordination.

6B is a view showing a state of a user in a sleeping state during operation. Referring to FIG. 6B, since the user is currently in the sleep state, the user's motion is not sensed in the second sensing unit 135. In this case, since the motion of the user is not detected, the controller 180 can acquire information that the user is currently in a state of coordination.

Meanwhile, noises other than the motion of the user, for example, a motion detected in accordance with the vibration of the vehicle can be removed in the course of acquiring information on the motion of the mobile terminal 100.

However, the present invention is not limited to the case where the current state of the user is determined to be in the drowsy state when the motion of the user is not detected. For example, the user can determine whether the user is currently in a drowsy state using a movement pattern of the user.

This will be described with reference to FIG.

7 is a diagram for explaining a method of determining whether a user is in a drowsy state by using a movement pattern of a user during operation.

As shown in Fig. 7A, when the driver is not sleeping and drowsiness occurs while driving, the user's elbow can be struck down as shown in Fig. 7B. In this case, the second sensing unit 135 can sense the motion of the watch-type mobile terminal, and can output a signal corresponding to the motion of the user to the control unit 180.

 The control unit 180 uses the signal received from the second sensing unit 135 to obtain information related to motions such as a movement direction, a movement angle, a movement speed, an intensity, a current position, a rotation direction, The motion pattern of the user can be obtained.

Also, the controller 180 may compare the movement pattern of the user with the motion pattern stored in the storage unit 170 to determine whether the user's current state is the drowsy state. Specifically, the storage unit 170 may store a pattern of movement when the person is in a drowsy state. The control unit 180 compares the motion pattern of the current user with the motion pattern previously stored in the storage unit 170, and can determine that the user is currently in a drowsy state if the two patterns coincide with each other.

However, the present invention is not limited to this. The storage unit 170 may store a plurality of movement patterns 170 that can be seen when a person is in a drowsy state, May be stored. The control unit 180 may determine that the current state of the user is in a drowsy state if the similarity degree between the user's movement pattern and a plurality of motion patterns previously stored in the storage unit 170 is greater than a specific value.

On the other hand, the controller 180 learns a movement pattern that can be seen when a person is in a drowsy state using a user's movement pattern, and stores the learning result in the storage unit 170. [

Specifically, when the user's specific motion is sensed through the second sensing unit 130 and the oxygen saturation of the user measured during the sensing of the user's specific motion is less than a certain value than the normal value, It can be determined that the specific motion is a movement pattern seen when the user is in a drowsy state.

Then, the control unit 180 stores the specific movement of the user in the storage unit 170 as a movement pattern that can be seen when the user is in a drowsy state, and then uses the learned movement pattern of the user to determine whether the user is in a drowsy state can do.

In the present embodiment, a method of determining that the user is in a drowsy state when the user is operating has been described, but the present invention is not limited thereto. Specifically, the storage unit 170 stores movement patterns that can be viewed when a person is in a drowsy state at various places (for example, a workplace, a house, a car, etc.) It is possible to determine where the place is. The controller 180 may determine that the current state of the user is in the drowsy state by comparing the movement pattern corresponding to the place where the user is currently located with the movement pattern of the current user.

Meanwhile, the control unit 180 uses a method of determining whether the user is in a drowsy state using the oxygen saturation described with reference to FIG. 5, and a method of determining whether the user is in a drowsy state using the user's movement pattern described in FIGS. To determine whether the user is in a drowsy state.

For example, the control unit 180 first determines whether the user's oxygen saturation falls below a certain value by more than a certain value. If the oxygen saturation falls below a certain value by more than a certain value, . If the user does not move or the movement pattern of the user coincides with the movement pattern that can be seen when the person previously stored in the storage unit 170 is in a drowsy state, the controller 180 determines that the current state of the user is a drowsy state can do.

The control unit 180 first grasps the movement pattern of the user and if the user does not move or the movement pattern of the user coincides with the movement pattern that can be seen when the user stored in the storage unit 170 is in the drowsy state, Of oxygen saturation can be measured. If the oxygen saturation of the user is lower than the normal value by a certain value or more, the controller 180 may determine that the current state of the user is in a drowsy state.

Referring back to FIG. 3, the method of operating the wearable device according to the embodiment of the present invention may include a step S340 of outputting a guide for preventing the user from drowsy when the user is in a drowsy state. Specifically, if it is determined that the current state of the user is in a drowsy state, the controller 180 may output a guidance for preventing the user from drowsy.

This will be described in detail with reference to FIG.

8 is a view for explaining a method of outputting a guide for preventing the user from drowsing when the user is in a drowsy state.

The control unit 180 may output a voice for preventing the user from drowsing through the sound output unit 152. [ 8, the control unit 180 may output a notification informing the user to a specific location in the form of voice by using the navigation module in the watch-type mobile terminal 100. In addition,

In addition, when the watch-type mobile terminal 100 is linked to navigation (not shown) in the vehicle, the controller 180 may transmit information that the user is currently in a drowsy state to navigation (not shown) It is possible to guide the user to the place closest to the user's current position.

In addition, the controller 180 may output the vibration for solving the drowsiness of the user by using the haptic module 153. In addition, the controller 180 may output an alarm sound for solving the drowsiness of the user through the sound output unit 153.

9 is a diagram showing a watch-type mobile terminal 100 interlocked with a plurality of apparatuses in a vehicle.

According to Fig. 9, the watch-type mobile terminal 100 can be interlocked with a plurality of devices in the vehicle. For example, the watch-type mobile terminal 100 can operate in conjunction with the in-vehicle oxygen generator 310, the car audio 320, the window controller 330, the seat ventilation controller 340, and the like.

The control unit 180 may transmit a command for operating the on-vehicle oxygen generator 310 through the wireless communication unit 110 when the user obtains information indicating that the user is currently in a drowsy state. When the in-vehicle oxygen generator 310 receives the command transmitted from the watch-type mobile terminal 100, the in-vehicle oxygen generator 310 generates oxygen to maintain the in-vehicle oxygen level at a certain level .

When the user obtains information indicating that the user is currently in a drowsy state, the control unit 180 may transmit a command to the car audio 320 through the wireless communication unit 110 to output audio. When the car audio 320 receives an instruction transmitted from the watch-type mobile terminal 100, the car audio 320 can output an alarm sound or music.

When the user obtains information indicating that the user is currently in a drowsy state, the control unit 180 may transmit an instruction to open the window to the window control unit 330 through the wireless communication unit 110. [ The window control device 330 can control to open the in-vehicle window upon receiving the command transmitted from the watch-type mobile terminal 100.

 Further, when the user obtains information indicating that the user is currently in a drowsy state, the control unit 180 may transmit an instruction to perform the ventilation to the seat ventilation control unit 340. [ The seat ventilation control apparatus 340 can control the ventilation in the seat when the command transmitted from the watch-type mobile terminal 100 is received.

In addition, when the user is in a closed space such as a vehicle or an indoor space, the control unit 180 can acquire the air quality in the space. Specifically, the third sensing unit 140 can analyze the components present in the air and obtain the ratio of carbon dioxide or oxygen in the air according to the analysis result. If the ratio of carbon dioxide in the air is higher than a specific value or the oxygen ratio is lower than a specific value, the control unit 180 transmits an instruction to generate oxygen to the in-vehicle oxygen generator 310, To the window control device 330 through the wireless communication unit 110 or to transmit the instruction to perform the ventilation to the seat ventilation control unit 340. [

Referring back to FIG. 3, the method of operating the wearable device according to the embodiment of the present invention includes acquiring a sleepiness pattern of a user using information obtained a plurality of times when information on whether the user is in a drowsy state is obtained a plurality of times (S350 ). Specifically, the control unit 180 may store the time when the user is in the drowsy state in the storage unit 170 every time information on whether the user is in the drowsy state is obtained.

10 is a table showing the time when the user is in a drowsy state in a table form.

The storage unit 170 stores information on a time when the user is in a drowsy state. The control unit 180 may obtain the sleepiness pattern of the user by using information on the time when the user is in the drowsy state. For example, based on the user's sleepiness detection time 1010 on June 29, 2015, the user's sleepiness detection time 1020 on June 30, 2015, and the user's sleepiness detection time 1030 on July 2, Thus, the control unit 180 can obtain the sleeping pattern of the user whose user is usually from 13:00 to 13:50.

On the other hand, a certain day of the week may be excluded from the process of acquiring the sleepiness pattern of the user. For example, in the case of an employee or a student, the time may be different on weekdays, usually in a company or school, and on weekends, usually at home. Accordingly, the control unit 180 may not use the sleepiness detection time 1050 of the user on Saturday, July 4, 2015, and the sleepiness detection time 1060 of the user on Sunday, July 5, 2015, Can be obtained.

Meanwhile, the control unit 180 may control the display unit 151 to output the acquired sleeping pattern of the user as a UI image. Thus, the user can perceive his / her drowsiness pattern, so that the user can exercise or relax at the time when his or her sleepiness is expected.

3, the operation method of the wearable apparatus according to the embodiment of the present invention includes a step of outputting a guide for preventing the user's drowsiness at a time when the user is expected to be drowsy by using the drowsiness pattern of the user (S360) . ≪ / RTI >

This will be described in detail with reference to FIG.

11 is a diagram for explaining a guiding method for preventing drowsiness of a user.

The control unit 180 may obtain information on a time when the user is expected to be drowsy by using the drowsiness pattern of the user. Then, when the user reaches the time at which drowsiness is anticipated, the control unit 180 can output the UI for recommending the user to exercise as shown in Fig. 11A. In addition, as shown in Fig. 11B, the control unit 180 can output a UI indicating the type of exercise necessary for eliminating drowsiness and the exercise time required for resolving drowsiness. Also, the controller 180 may count the number of times the user moves by using the movement of the user sensed through the second sensing unit 135, and display the counted number of times. In addition, the controller 180 may display the elapsed time or the remaining time after the start of the exercise using the motion of the user sensed through the second sensing unit 135. [

Meanwhile, in the present embodiment, a guide for preventing the user from drowning is output through the UI. However, the present invention is not limited to this, and guidance for preventing drowsiness of the user may be output in various ways such as voice or vibration.

On the other hand, the control unit 180 can output a guidance for preventing the user from drowsing only on a specific day of the week. For example, in the case of weekends where people usually take breaks at home, there is no need to output a guide for preventing the user from drowsing, so the control unit 180 may provide guidance for preventing the user from drowning, , Thursday, and Friday.

In addition, the controller 180 may determine the position of the current user and determine whether to output guidance for preventing the user from drowsy according to the determined position of the user. For example, when the user is in the automobile or the office, the controller 180 may output a guide for preventing the user from drowning. If the user is at home, the controller 180 may display a guide for preventing the user from drowsy May not be output.

Meanwhile, in the above embodiment, the guide for preventing the user from drowsy at the time when the user is expected to be drowsy by using the drowsiness pattern of the user has been described. However, the present invention is not limited to this.

For example, it is possible to determine the air quality in the space where the user is located through the third sensing unit 140, and to output a guide for preventing the user from drowsiness if the amount of oxygen in the air is insufficient.

Also, the third sensing unit 140 may sense the heartbeat of the user, and the controller 180 may measure the heartbeat-based stress using the sensed heartbeat of the user. Specifically, the controller 180 can measure heartbeat-based stress using a change in the heartbeat cycle (in other words, a change in heartbeat per unit time). Since the user is drowsy if there is a heart-based stress, the controller 180 can output a guidance for preventing the user from drowning if there is a heart-based stress.

Meanwhile, a method of operating a wearable device according to an embodiment of the present invention includes the steps of: communicating with at least one external device constituting a home network system; and transmitting the at least one external device And a step of controlling.

This will be described in detail with reference to FIG.

12 is a diagram illustrating a watch-type mobile terminal communicating with one or more external devices constituting a home network system.

12, a watch-type mobile terminal 100 can communicate with one or more external devices 510, 520, 530, 540, 550, 560, 570, 580 constituting a home network system. More specifically, the watch-type mobile terminal 100 may be a Bluetooth ™, a Radio Frequency Identification (RFID), an Infrared Data Association (IrDA), an Ultra Wideband (UWB), a ZigBee, Communication with a home network server using short range communication such as Wi-Fi (Wireless-Fidelity), Wi-Fi Direct or Wireless USB (Wireless Universal Serial Bus) Communication can be performed. The home network server may communicate with one or more external devices 510, 520, 530, 540, 550, 560, 570, 580 through a home network communication network. However, the present invention is not limited to this, and a watch-type mobile terminal 100 may be connected to one or more external devices 510, 520, 530, 540, 550, 560, 570, May be used for direct communication.

Meanwhile, the control unit 180 may control at least one of the one or more external devices 510, 520, 530, 540, 550, 560, 570, 580 to operate in the sleep mode when the user is in a drowsy state.

Specifically, when the control unit 180 obtains information indicating that the current user is in a drowsy state, the control unit 180 instructs the at least one external device 510, 520, 530, 540, 550, 560, 570, 580 to operate in the sleep mode Lt; / RTI >

For example, the control unit 180 may transmit a command to adjust the wind intensity or temperature of the air conditioner 530, or may transmit a command to reduce or turn off the volume of the audio signal 540. In addition, the control unit 180 may transmit a command to reduce or turn off the noise of the washing machine 550, or may transmit a command to reduce or turn off the noise of the cleaner 560. In addition, the controller 180 may transmit a command to reduce or turn off the volume of the TV 570, and may transmit a command to decrease or turn off the brightness of the illumination 580. [ Further, it is possible to transmit an instruction to the air cleaner 510 or the air washer 520 to maintain an optimal amount of oxygen or optimum carbon dioxide during the water surface.

In addition, the controller 180 can obtain the indoor air quality distribution. Specifically, the third sensing unit 140 can analyze the components present in the air and obtain the ratio of carbon dioxide or oxygen in the air according to the analysis result. If the ratio of carbon dioxide in the air is higher than a specific value or the ratio of oxygen is lower than a specific value, a command for increasing the proportion of oxygen may be transmitted to the air cleaner 510 or the air washer 520.

Meanwhile, in the present embodiment, the third sensing unit 140 has been described to analyze the in-air component, but the present invention is not limited thereto. For example, the home network system 500 may include an air quality measurement device (not shown) capable of analyzing components in the indoor air, and may transmit measurement results to the watch-type mobile terminal 100. In this case, when it is determined that the ratio of the carbon dioxide in the air is higher than a specific value or the ratio of oxygen is lower than a specific value based on the received measurement result, the controller 180 sends an instruction to increase the oxygen ratio to the air cleaner 510 or air To the washer 520

On the other hand, the controller 180 can individually control one or more devices constituting the home network system using the sleep state of the user.

Specifically, the control unit 180 determines whether the user is currently sleeping, sleeping, or taking a sleeping state by using the amount or frequency of movement of the user sensed by the second sensing unit 135 . In addition, the control unit 180 compares the movement pattern of the user with the movement patterns in the drowsy state, the sleep patterns in sleep state, and the sleep patterns in the storage unit 170, It is possible to judge whether the user is currently in a drowsy state, in a sleeping state, or in a sleeping state.

The controller 180 controls the air conditioner 530, the audio 540, the washer 550, the cleaner 560, and the air conditioner 530 to induce a user's sleeping state, TV 570, and illumination 580 to operate in the sleep mode. The controller 180 may transmit a command to the air cleaner 510 or the air washer 520 to maintain the optimal amount of oxygen or optimum carbon dioxide during sleep when the user is sleeping.

Meanwhile, when the user input is received, the control unit 180 may transmit a command to make one or more external devices constituting the home network system 500 operate in the sleep mode.

Specifically, as shown in FIG. 13, when information indicating that the current state of the user is drowsy is acquired, the controller 180 outputs a notification indicating that one or more external devices can be operated in the sleep mode through user input can do.

When the user input for starting the sleep mode is received, the controller 180 may transmit a command to operate at least one of the one or more external devices constituting the home network system 500 to operate in the sleep mode.

As described above, according to the present invention, it is possible to output a notification indicating that one or more external devices can be operated in the sleep mode, and when one or more external devices are operated in a sleep mode in response to a user input, It is possible to take a good sleep with a simple button operation.

FIG. 14 is a flowchart illustrating a method of operating a wearable device according to an embodiment of the present invention.

Referring to FIG. 14, the controller 180 may determine whether the user is in a drowsy state using at least one of a user's oxygen saturation and a movement pattern (S1410)

Specifically, when the user is in a drowsy state, the current user's location can be determined (S1420). Specifically, the user can search for nearby external communication devices using the local area wireless communication network, The controller 180 can determine whether the current position of the watch-type mobile terminal 100 is the inside of the automobile, the office, or the home. The control unit 180 stores the received information in the storage unit 170 and stores the received information in the storage unit 170. When the external device is located, It can be used to judge a place.

When the position of the watch-type mobile terminal 100 is the automobile or the office, the controller 180 outputs a guide for preventing the user from drowsing, Guidance can be output (S1430, S1440)

On the other hand, when the place where the watch-type mobile terminal 100 is located is home, the controller 180 may obtain information on the current time (S1450)

On the other hand, if the current time is the first time, the controller 180 may output a guide for preventing the user from drowning. (S1460) Here, the first time may be a time for preventing the user from drowsy. For example, the first time may be a weekday work time.

On the other hand, if the current time is the second time, the controller 180 may control the external device to operate one or more external devices communicating with the watch-type mobile terminal in the sleep mode (S1470) It may be time to induce the user ' s sleep. For example, the second time may be a weekday evening, a night time, or a weekend time.

In the previous embodiments, the wearable device is a watchdog type mobile terminal. However, the present invention is not limited to this, and may be any device that can be worn on the body of the user to detect the motion of the user or measure the oxygen saturation of the user. have.

Also, in the previous embodiments, the present invention is described as being implemented as a wearable device, but the present invention is not limited thereto.

For example, the wearable device includes only a configuration for the first sensing unit 130 and the second sensing unit 135, and the remaining configuration except for the first sensing unit 130 and the second sensing unit 135 is a wearable The present invention can be embodied in a mobile terminal that interacts with a device.

On the other hand, the control unit 180 is generally configured to control the apparatus, and may be used in combination with terms such as a central processing unit, a microprocessor, a processor, and the like.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). Also, the computer may include a control unit 180 of the terminal. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

130: first sensing unit 135: second sensing unit
180:

Claims (11)

A method of operating a wearable device,
Obtaining data based on measuring blood oxygen saturation of the wearable device user; And
And acquiring information on whether the user is in a drowsy state using the oxygen saturation measured based on the data
A method of operating a wearable device.
The method according to claim 1,
Further comprising detecting movement of the user of the wearable device,
Wherein the step of acquiring information on whether the user is in a drowsy state comprises:
And acquires information on whether the user is in a drowsy state using the movement pattern of the user and the oxygen saturation
A method of operating a wearable device.
The method according to claim 1,
Wherein the step of acquiring information on whether the user is in a drowsy state comprises:
If the oxygen saturation is lower than the normal value by a predetermined value or more, it is determined that the user is in a drowsy state
A method of operating a wearable device.
3. The method of claim 2,
Wherein the step of acquiring information on whether the user is in a drowsy state comprises:
If the user's movement pattern matches the pre-stored movement pattern, it is determined that the user is in a drowsy state
A method of operating a wearable device.
The method according to claim 1,
And outputting a guide for preventing the user from drowsy if the user is in a drowsy state
A method of operating a wearable device.
The method according to claim 1,
Acquiring a drowsiness pattern of the user using the obtained information a plurality of times when information on whether the user is drowsy is obtained a plurality of times; And
And outputting a guide for preventing drowsiness of the user at a time when the drowsiness of the user is expected by using the drowsiness pattern of the user
A method of operating a wearable device.
The method according to claim 1,
And transmitting an oxygen generation command to an oxygen generating device in communication with the wearable device when the user is in a drowsy state
A method of operating a wearable device.
3. The method of claim 2,
Communicating with at least one external device constituting a home network system; And
And controlling the at least one external device so that the external device operates in a sleep mode if the user is in a drowsy state
A method of operating a wearable device.
In a wearable device,
A first sensing unit for acquiring data based on the blood oxygen saturation of the user of the wearable device; And
And a controller for acquiring information on whether the user is in a drowsy state using the oxygen saturation measured based on the data
Wearable device.
10. The method of claim 9,
And a second sensing unit for sensing movement of the user of the wearable device,
Wherein,
And acquires information on whether the user is in a drowsy state using the movement pattern of the user and the oxygen saturation
Wearable device.
10. The method of claim 9,
Wherein,
If the oxygen saturation is lower than the normal value by a predetermined value or more, it is determined that the user is in a drowsy state
Wearable device.

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