KR102415548B1 - Wearable device and operating method thereof - Google Patents

Abstract

A method of operating a wearable device is disclosed. The method of operating a wearable device according to the present invention includes: acquiring data that is a basis for measuring a blood oxygen saturation level of a user of the wearable device; and the user is drowsy using the oxygen saturation level measured based on the data and acquiring information on whether the state is in the state.

Description

Wearable device and its operating method {WEARABLE DEVICE AND OPERATING METHOD THEREOF}

The present invention relates to a wearable device capable of determining whether a user is drowsy by using the user's oxygen saturation level, and an operating method thereof.

When the driver continues to breathe in an enclosed vehicle, the amount of oxygen in the vehicle is gradually reduced and, conversely, carbon dioxide is gradually increased. In addition, when there is insufficient oxygen to breathe in the vehicle, fatigue accumulates in the central nervous system of the brain, and the senses become dull, cognitive function decreases and drowsiness is induced.

In order to prevent accidents caused by drowsy driving, various technologies exist for detecting a user's drowsiness while driving. For example, there are technologies such as measuring and analyzing a user's electrocardiogram or determining whether a user's state is a drowsy state by photographing and analyzing the user's electrocardiogram.

However, the technology for preventing drowsiness using the user's electrocardiogram has a problem in that it is necessary to acquire biosignals by restraining two or more parts of the human body. Therefore, there was a problem in space and cost.
As prior literatures related thereto, there are Japanese Patent Application Laid-Open No. 10-2012-0121074, Japanese Patent Application Laid-Open No. 10-2014-0112984, and Japanese Patent Laid-Open No. 2008-067941.

SUMMARY OF THE INVENTION The present invention is to solve the above problems, and an object of the present invention is to provide a wearable device capable of determining whether a user is drowsy by using the oxygen saturation level of the user, and an operating method thereof.

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

Meanwhile, in the wearable device according to an embodiment of the present invention, a first sensing unit for acquiring data that is a basis for measuring oxygen saturation in blood of a user of the wearable device, and the oxygen saturation measured based on the data and a control unit configured to obtain information on whether the user is in a drowsy state by using the .

1 is a block diagram illustrating a portable device related to the present invention.
2 is a perspective view illustrating an example of a watch-type mobile terminal related to the present invention.
3 is a flowchart illustrating 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 the oxygen saturation level in the user's blood.
6 is a diagram for explaining a method of determining whether a user is in a drowsy state using whether a user's motion is detected while driving.
7 is a diagram for describing a method of determining whether a user is in a drowsy state using a user's movement pattern while driving.
8 is a view for explaining a method of outputting a guide for preventing the user from drowsiness when the user's state is a drowsy state.
9 is a diagram illustrating a watch-type mobile terminal 100 that interworks with a plurality of devices in a vehicle.
FIG. 10 is a diagram illustrating the amount of time a user was in a drowsy state organized in a table form.
11 is a view for explaining a guide 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 diagram illustrating a watch-type mobile terminal in which a UI capable of operating an external device in a sleep mode is displayed.
14 is a flowchart illustrating a method of operating a wearable device according to an embodiment of the present invention.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numbers regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "part" for components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have distinct meanings or roles by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

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

In this embodiment, the 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 and It may include a power supply 190 and the like. The components shown in FIG. 1 are not essential for implementing the portable device, and thus the portable device described herein may have more or fewer components than those listed above.

More specifically, among the components, the wireless communication unit 110 includes a wireless communication system between 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 an external server. It may include one or more modules that 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 reception module 111 , a mobile communication module 112 , a wireless Internet module 113 , a short-range communication module 114 , and a location information module 115 . .

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

The third sensing unit 140 may include one or more sensors for sensing at least one of information in the watch-type mobile terminal, 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, an illumination sensor, a touch sensor, an acceleration sensor, and a magnetic sensor. , Gravity sensor (G-sensor), gyroscope sensor, motion sensor, RGB sensor, infrared sensor (IR sensor), fingerprint sensor (finger scan sensor), ultrasonic sensor (ultrasonic) sensor), optical sensor (eg, camera (see 121)), microphone (see 122), battery gauge, environmental sensor (eg, barometer, hygrometer, thermometer, radiation detection) sensor, heat sensor, gas sensor, etc.) and chemical sensor (eg, electronic nose, healthcare sensor, biometric sensor, etc.). Meanwhile, the mobile terminal 100 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 visual, auditory or tactile sense, and includes at least one of a display unit 151 , a sound output unit 152 , a haptip module 153 , and an optical output unit 154 . can do. The display unit 151 may implement a touch screen by forming a layer structure with the touch sensor or being integrally formed. Such a touch screen may function as the user input unit 123 providing an input interface between the mobile terminal 100 and the user, and may provide an output interface between the mobile terminal 100 and the user.

The interface unit 160 serves as a passage with 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 the connection of the external device 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 (or applications) driven 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 basic functions (eg, incoming calls, outgoing functions, message reception, and outgoing functions) of the mobile terminal 100 . Meanwhile, the application program may be stored in the memory 170 , installed on the mobile terminal 100 , and driven to perform an operation (or function) of the mobile terminal 100 by the controller 180 .

In addition to the operation related to the application program, the controller 180 generally controls the overall operation of the portable device 100 . The controller 180 may provide or process appropriate information or functions to the user by processing signals, data, information, etc. input or output through the above-described components or by driving an application program stored in the memory 170 .

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

The power supply unit 190 receives external power and internal power under the control of the control unit 180 to supply 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.

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

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

First, referring to 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 of the broadcast reception modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.

Mobile communication module 112, the 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 -Enhanced Voice-Data Optimized or Enhanced Voice-Data Only (DO), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), LTE-A (Long Term Evolution-Advanced, etc.) transmits and receives a radio signal to and from at least one of a base station, an external terminal, and a server on a mobile communication network constructed according to.

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

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

As wireless Internet technology, 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), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), 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 point of view 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 performs wireless Internet access through the mobile communication network. ) may be understood as a type of the mobile communication module 112 .

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

The short-range communication module 114 may detect (or recognize) another mobile terminal capable of communicating in the vicinity of the mobile terminal 100 . Furthermore, when another mobile terminal is a device authenticated to communicate with the mobile terminal 100 according to the present invention, the controller 180 transmits at least a portion of data processed in the mobile terminal 100 to the short-range communication module 114 . can be transmitted to another mobile terminal through Accordingly, the user of the other mobile terminal may use data processed in the mobile terminal 100 through the other mobile terminal. For example, according to this, when a call is received by the mobile terminal 100, the user performs a phone call through another mobile terminal, or when a message is received by the mobile terminal 100, the user uses the other mobile terminal It is possible to confirm the received message.

The location information module 115 is a module for obtaining a location (or current location) of a mobile terminal, and a representative example thereof includes a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, if the mobile terminal utilizes a GPS module, it can acquire the location of the mobile terminal by using a signal transmitted from a GPS satellite. As another example, if 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 of the other modules of the wireless communication unit 110 to obtain data on the location of the mobile terminal as a substitute or additionally. 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 input of image information (or signal), audio information (or signal), data, or information input from a user. For input of image information, the mobile terminal 100 uses 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 shooting mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170 . On the other hand, 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 as described above, various angles or focal points are applied to the mobile terminal 100 . A plurality of image information with 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 an external sound signal as electrical voice data. The processed voice data may be utilized in various ways according to a function (or an application program being executed) being performed by the mobile terminal 100 . Meanwhile, various noise removal 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, and when information is input through the user input unit 123 , the controller 180 may control the operation of the mobile terminal 100 to correspond to the input information. . The user input unit 123 is a mechanical input means (or a mechanical key, for example, a button located on the front/rear or side of the mobile terminal 100, a dome switch, a jog wheel, jog switch, etc.) and a touch input means. As an example, the touch input means consists of a virtual key, a soft key, or a visual key displayed on the touch screen through software processing, or a part other than the touch screen. It may be made of a touch key (touch key) disposed on the. On the other hand, the virtual key or the visual key, it is possible to be displayed on the touch screen while having various forms, for example, graphic (graphic), text (text), icon (icon), video (video) or these can be made by a combination of

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 sensing signal corresponding thereto. The controller 180 may control the driving or operation of the mobile terminal 100 or perform data processing, function, or operation related to an application program installed in the mobile terminal 100 based on the sensing signal. Representative sensors among various sensors that may 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 or absence of an object approaching a predetermined detection surface or an object existing in the vicinity without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor 141 may be disposed in an inner region of the mobile terminal covered by the touch screen described above or near 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 type proximity sensor, a magnetic type proximity sensor, and an infrared proximity sensor. When the touch screen is capacitive, the proximity sensor 141 may be configured to detect the proximity of an object having conductivity by a change in an 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, the act of approaching an object on the touch screen without contacting it so that the object is recognized that it is located on the touch screen is called “proximity touch”, and the touch The act of actually touching an object on the screen is called "contact touch". The position where the object is touched in proximity on the touch screen means a position where the object is perpendicular to the touch screen when the object is touched in proximity. 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.) have. Meanwhile, the controller 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 printed on the touch screen. Furthermore, the controller 180 may control the mobile terminal 100 to process different operations or data (or information) according to whether a touch to the same point on the touch screen is a proximity touch or a contact touch. .

The touch sensor 142 is a touch (or touch) 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. input) is detected.

As an example, the touch sensor 142 may be configured to convert a change in pressure applied to a specific part of the touch screen or a change in capacitance generated in a specific part of the touch screen into an electrical input signal. The touch sensor 142 may be configured to detect a position, an area, a pressure at the time of touch, capacitance at the time of touch, etc. where a touch object applying a touch on the touch screen is touched on the touch sensor 142 . . 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 142 , a signal(s) corresponding thereto is sent to the touch controller. The touch controller processes the signal(s) and then transmits corresponding data to the controller 180 . Accordingly, the controller 180 can know which area of the display unit 151 has been touched, and the like. 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 may perform the same control according to the type of the touch object that touches the touch screen (or a touch key provided in addition to 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 the operating state of the watch-type mobile terminal 100 or a running application program.

On the other hand, the touch sensor 142 and the proximity sensor 141 described above are independently or in combination, a short (or tap) touch (short touch), long touch (long touch), multi-touch (multi touch) on the touch screen. , drag touch, flick touch, pinch-in touch, pinch-out touch, swype touch, hovering touch Various types of touches, such as, may be sensed.

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

The second sensing unit 135 may detect a movement of a user of the display device. Specifically, when the user carries the watch-type mobile terminal 100, the second sensing unit 135 senses the movement of the watch-type mobile terminal 100 and transmits a signal corresponding to the movement of the mobile terminal to the controller ( 180) can be printed. The controller 180 may detect movement-related information such as a movement direction, a movement angle, a movement speed, a strength, a current position, a rotation direction, and a rotation angle of the portable terminal from the 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, an inclination sensor, an altitude sensor, a depth sensor, a gyroscope sensor, an angular velocity sensor, and a GPS sensor.

On the other hand, the camera 121 as seen in the configuration of the input unit 120 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. The photo sensor may be stacked on the display device, and the photo sensor is configured to scan the motion of a sensing target close to the touch screen. More specifically, the photo sensor mounts a photo diode and TR (transistor) in rows/columns and scans the contents placed on the photo sensor using an electrical signal that changes according to the amount of light applied to the photo diode. That is, the photo sensor calculates the coordinates of the sensing target according to the amount of change in light, and through this, location information of the sensing target 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 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, 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 a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100 . 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 the user can feel. A representative example of the tactile effect generated by the haptic module 153 may be vibration. The intensity and pattern of vibration generated by the haptic module 153 may be controlled by a user's selection or setting of the controller. For example, the haptic module 153 may synthesize and output different vibrations or output them sequentially.

In addition to vibration, the haptic module 153 is configured to respond to stimuli such as a pin arrangement that moves vertically with respect to the contact skin surface, a jet force or suction force of air through a nozzle or an inlet, rubbing against the skin surface, contact of an electrode, electrostatic force, etc. Various tactile effects can be generated, such as the effect of heat absorption and the effect of reproducing a feeling of coolness and warmth using an element capable of absorbing heat or generating heat.

The haptic module 153 may not only deliver a tactile effect through direct contact, but may also be implemented so that the user can feel the tactile effect through a muscle sense such as a finger or 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 the occurrence of an event by using the light of the light source of the mobile terminal 100 . Examples of the event occurring in the mobile terminal 100 may be 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 optical output unit 154 is implemented as the mobile terminal emits light of a single color or a plurality of colors toward the front or rear. The signal output may be terminated when the mobile terminal detects the user's event confirmation.

The interface unit 160 serves as a passage with all external devices connected to the mobile terminal 100 . The interface unit 160 receives data from an external device, 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, a port for connecting a device equipped with an identification module (port), an audio I/O (Input/Output) port, a video I/O (Input/Output) port, an earphone port, etc. may be included in the interface unit 160 .

On the other hand, the identification module is a chip storing various types of information for authenticating the use authority of the mobile terminal 100, a user identification module (UIM), a subscriber identity module (subscriber identity module; SIM), universal user authentication It may include a universal subscriber identity module (USIM) and the like. A device equipped with an identification module (hereinafter, '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, when the mobile terminal 100 is connected to an external cradle, the interface unit 160 becomes a passage through which power from the cradle is supplied to the mobile terminal 100, or is input from the cradle by a user. Various command signals may be a path through which the mobile terminal 100 is transmitted. Various command signals or the power input from the cradle may be operated as signals 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 may temporarily store input/output data (eg, a phone book, a message, a still image, a moving picture, etc.). The memory 170 may store data related to vibrations and sounds of various patterns output when a touch input on the touch screen is input.

Memory 170 is a flash memory type (flash memory type), hard disk type (hard disk type), SSD type (Solid State Disk type), SDD type (Silicon Disk Drive type), multimedia card micro type (multimedia card micro type) ), card-type memory (such as SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read (EEPROM) -only memory), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk may include at least one type of storage medium. 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 controller 180 controls the operation related to the application program and the general operation 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 lock state restricting input of a user's control command to applications.

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

The power supply unit 190 receives external power and internal power under the control of the control unit 180 to supply power required for operation of each component. The power supply unit 190 includes a battery, and the battery may be a built-in battery configured to be rechargeable, 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 the interface 160 to which an external charger that supplies 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 uses one or more of an inductive coupling method based on a magnetic induction phenomenon or a resonance coupling method based on an electromagnetic resonance phenomenon from an external wireless power transmitter. power can be transmitted.

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

Hereinafter, for 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 CDMA wireless communication systems as well as OFDM (Orthogonal Frequency Division Multiplexing) wireless communication systems.

The CDMA wireless communication system includes at least one terminal 100, at least one base station (Base Station, BS (also referred to as Node B or Evolved Node B)), and at least one base station controller (Base Station Controllers, BSCs). ), and a mobile switching center (MSC). The MSC is configured to be connected to a 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, and xDSL. Accordingly, a plurality of BSCs may 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 radial direction from the BS. In addition, each sector may include two or more antennas of various types. Each BS may be configured to support multiple frequency assignments, and each of the multiple frequency assignments may have a specific spectrum (eg, 1.25 MHz, 5 MHz, etc.).

The intersection of sector and frequency allocation 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 refer to 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 broadcast transmitter (BT) transmits a broadcast signal to the terminals 100 operating in the system. The broadcast reception module 111 shown in FIG. 1 is provided in the terminal 100 to receive a broadcast signal transmitted by BT.

In addition, a global positioning system (GPS) for confirming the location of the mobile terminal 100 may be linked to the CDMA wireless communication system. The satellite 300 helps to determine the location of the mobile terminal 100 . Useful location information may be obtained by two or fewer or more satellites. Here, the location of the mobile terminal 100 may be tracked using not only the GPS tracking technology but also all techniques capable of tracking the location. In addition, 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 thereof may include a Global Position System (GPS) module and a Wireless Fidelity (WiFi) module. If necessary, the location information module 115 may perform any function of the other modules of the wireless communication unit 110 to obtain data on the location of the mobile terminal as a substitute or additionally.

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. Currently, a method of calculating position and time information using three satellites and correcting errors in the calculated position and time information using another one satellite is widely used. In addition, the GPS module 115 may calculate the speed information by continuously calculating the current location in real time. However, it is difficult to accurately measure the position of the mobile terminal using the GPS module in the shaded area of the satellite signal, such as indoors. Accordingly, in order to compensate for positioning by the GPS method, a WiFi Positioning System (WPS) may be utilized.

A WiFi positioning system (WPS) uses 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, the mobile terminal 100 As a technology for tracking the location of a wireless network, it refers to a wireless local area network (WLAN)-based positioning technology using WiFi.

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

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

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

Based on the location information request message of the mobile terminal 100, the extracted wireless AP information is MAC Address, Service Set IDentification (SSID), Received Signal Strength Indicator (RSSI), Reference Signal Received Power (RSRP), RSRQ ( Reference Signal Received Quality), channel information, Privacy, Network Type, signal strength, and noise strength may be at least one.

As described above, the Wi-Fi positioning server may receive information of a wireless AP connected to the mobile terminal 100 and extract wireless AP information corresponding to a wireless AP to which the mobile terminal is connected from a pre-established 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, the name of the building where the wireless AP is located, the number of floors, and detailed indoor location information (GPS coordinates). available), the AP owner's address, phone number, and the like. In this case, in order to remove a mobile AP or a wireless AP provided using an illegal MAC address in the positioning process, the Wi-Fi positioning server may extract only a predetermined number of wireless AP information in order of increasing RSSI.

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

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

The Cell-ID method is a method of determining the location of a wireless AP having the strongest signal strength among surrounding wireless AP information collected by the mobile terminal as the location of the mobile terminal. It has the advantages of being simple to implement, not requiring additional cost, and being able to quickly obtain location information, but has a disadvantage in that the positioning accuracy is lowered when the installation density of the wireless AP is low.

The fingerprint method is a method of collecting signal strength information by selecting a reference position in a service area, and estimating the position 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 the mobile terminal and the wireless AP, the signal strength is converted into distance information, the time at which a wireless signal is transmitted (Time of Arrival, ToA), and the time difference of the signal is transmitted (Time Difference of Arrival, TDoA) , the angle at which the signal is transmitted (Angle of Arrival, AoA), etc. may 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 enumerated methods, various algorithms may be utilized 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 may acquire location information by being connected to at least one wireless AP. In this case, the number of wireless APs required to acquire the location information of the mobile terminal 100 may be variously changed according to the wireless communication environment in which the mobile terminal 100 is located.

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

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

Meanwhile, in the present embodiment, it has been described that the portable device is a mobile terminal, but the present invention is not limited thereto. Any device capable of evaluating the user's physical strength by measuring the user's walking speed and heart rate while being portable by the user. can be

Also, the portable device may be a wearable device, and the portable device may be a watch-type mobile terminal among wearable devices. An embodiment in which a portable device is implemented as a wearable device will be described with reference to FIG. 2 .

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

The watch-type mobile terminal 100 shown in FIG. 2 may include all the components shown in FIG. 1 .

The display unit 251 of the watch-type mobile terminal 100 illustrated 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 can give a user a visually good image, and any shape that can help the user's manipulation of the touch screen does not matter.

Referring to FIG. 2 , the 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 to be worn on the wrist. The display unit 251 may correspond to a touch screen.

The body 201 includes a case forming an exterior. As illustrated, 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 thereto, and one case is configured to provide the inner space, so that the unibody watch type mobile terminal 100 may be implemented.

The watch-type mobile terminal 100 is configured to enable wireless communication, and an antenna for wireless communication may be installed in the main body 201 . On the other hand, the antenna can expand its performance by using a case. For example, a case including a conductive material may be electrically connected to the antenna to expand the ground area or the radiation 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 be implemented as a touch screen. As illustrated, 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 a sound 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, it may function as the user input unit 223 , and accordingly, a separate key may not be provided in the main body 201 .

The band 202 is worn on the wrist to surround the wrist, and may be formed of a flexible material for easy wearing. As such, the band 202 may be formed of leather, rubber, silicone, synthetic resin, or the like. In addition, the band 202 is configured to be detachable from the body 201, and may be configured to be replaceable with a band of various types according to the user's taste.

On the other hand, the band 202 can be used to extend the performance of the antenna. For example, the band may have a built-in ground extension unit (not shown) electrically connected to the antenna to expand the ground area.

The band 202 may be provided with a fastener 202a. The fastener 202a may be implemented by a buckle, a snap-fit hook structure, or velcro (trade name), etc., and may include an elastic section or material. . In this figure, an example in which the fastener 202a is implemented in the form of a buckle is presented.

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

Referring to FIG. 3 , the method of operating a wearable device according to an embodiment of the present invention includes the steps of: acquiring data that is a basis for measuring oxygen saturation in blood of a wearable device user ( S310 ), and detecting a motion of the wearable device user (S320), obtaining information on whether the user is drowsy by using the oxygen saturation measured based on the data and the user's movement pattern (S330), for preventing the user from drowsiness if the user is drowsy The step of outputting a guide (S340), if the information on whether the user is in a drowsy state is obtained a plurality of times, a step of obtaining a user's drowsiness pattern using the information obtained a plurality of times (S350), using the user's drowsiness pattern, It may include outputting a guide for preventing the user's drowsiness at a time when the user's drowsiness is expected ( S360 ).

In relation to the step ( S310 ) of acquiring data that is a basis for measuring the oxygen saturation level in the blood of the wearable device user, the first sensor unit 130 may measure the oxygen saturation level in the blood of the wearable device user. This will be described in detail with reference to FIG. 4 .

4 is a diagram for describing the first sensor unit in detail.

4A is a block diagram illustrating a configuration of a 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 for the normal functioning of each cell in the human body. If the amount of oxygen decreases, energy metabolism in the cells of the tissue is restricted, and if oxygen is not supplied for a long time, the activity of the human body may stop. It is hemoglobin contained in red blood cells that is responsible for this important oxygen supply.

In the measurement of oxygen saturation in the present invention, light having a first wavelength and light having a second wavelength are irradiated to blood, and absorption rates of the first wavelength and the second wavelength change according to the amount of oxygen attached to hemoglobin in the blood. .

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

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

In addition, the light emitting device used in the light emitting unit (LED: Light Emitted Diode) will be described as an example, but the present invention is not limited thereto, and the light emitting device may be implemented as a laser diode (LD: Laser Diode) or a lamp. .

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

The light receiving unit 132 may receive the reflected infrared and red light, and output the received infrared and red light as an electrical signal. That is, the first sensing unit 130 may acquire data indicating the magnitude of the reflected infrared and 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 and red light as electrical signals.

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

According to FIG. 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 where the display unit 151 of the watch-type mobile terminal 100 is located. In addition, the light emitting unit 131 and the light receiving unit 132 may be located on the same surface. Accordingly, the light emitting unit 131 may emit infrared and red light toward the user's body, and the light receiving unit 132 may receive infrared and red light reflected by blood hemoglobin.

Meanwhile, in the present embodiment, it has been described that the light emitting unit 131 and the light receiving unit 132 are positioned on the same surface, but the present invention is not limited thereto.

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

Although the above embodiment has been described as measuring the oxygen saturation using the reflectance of light, when the light emitting unit 131 and the light receiving unit 132 are disposed to face each other, the oxygen saturation may be measured using the transmittance of light. Specifically, since the absorption rates of infrared and red light change according to the amount of oxygen bound to hemoglobin, the transmittance of infrared and red light also varies. Accordingly, the intensity of infrared and red light received by the light receiving unit 132 also varies, and oxygen saturation can be measured using this bar.

Referring back to FIG. 3 , the method of operating the wearable device according to an embodiment of the present invention may include detecting a movement of the wearable device user ( S320 ). Specifically, when the user carries the watch-type mobile terminal 100, the second sensing unit 135 senses the movement of the watch-type mobile terminal 100 and transmits a signal corresponding to the movement of the mobile terminal to the controller ( 180) can be printed. The controller 180 may detect movement-related information such as a movement direction, a movement angle, a movement speed, a strength, a current position, a rotation direction, and a rotation angle of the portable terminal from the signal generated by the second sensing unit 135 .

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

On the other hand, both the oxygen saturation and the user's movement pattern can be used to obtain information on whether the user is in a drowsy state, but information on whether the user is in a drowsy state using only the oxygen saturation or only the user's movement pattern can be used. can be obtained

A method of obtaining information on whether a user is in a drowsy state using oxygen saturation will be described with reference to FIG. 5 .

5 is a diagram for explaining a method of determining whether a user is in a drowsy state using the oxygen saturation level in the user's blood.

The controller 180 may measure oxygen saturation in the user's blood based on the data received from the first sensing unit 130 . Specifically, when the first sensing unit 130 converts the intensity of the reflected infrared or red light into an electric signal and transmits it to the controller 180, the controller 180 determines the light attenuation of infrared and red light from the received electric signal. can be obtained More specifically, the controller 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 light attenuation of infrared and red light. The oxygen saturation level in the blood can be measured using the difference (-) between the obtained light attenuation degrees of infrared and red light.

Meanwhile, the controller 180 may 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 may determine that the user is in a drowsy state when the oxygen saturation is lower than a normal value by a specific value or more.

For example, when the normal value of 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 drowsy. can do. Here, the normal value may be a statistically obtained oxygen saturation value of the general public, or may be a value obtained by continuously measuring the oxygen saturation level of the user of the watch-type mobile terminal 100 .

Meanwhile, information on whether the user is in a drowsy state may be obtained by using the user's movement pattern.

This will be described with reference to FIGS. 6 to 7 .

6 is a diagram for explaining a method of determining whether a user is in a drowsy state by using whether a user's motion is detected while driving.

6A is a diagram illustrating a state of a user driving while not sleeping.

As shown in FIG. 6A , when the user is not drowsy, the user may manipulate the handle or make other movements. In this case, the second sensing unit 135 may sense the movement of the watch-type mobile terminal 100 and output a signal corresponding to the user's movement to the controller 180 .

Then, the controller 180 uses the signal received from the second sensing unit 135 to receive information related to movement of the mobile terminal, such as the movement direction, movement angle, movement speed, intensity, current position, rotation direction, and rotation angle. can be obtained

Then, when the user's movement is detected, the controller 180 may acquire information indicating that the user is not currently in a state of drowsiness.

6B is a diagram illustrating a state of a user in a state of dozing while driving. According to FIG. 6B , the user's movement is not detected by the second sensing unit 135 because the user is currently sleeping. In this case, since the user's movement is not detected, the controller 180 may acquire information indicating that the user is currently in a drowsy state.

Meanwhile, noise other than the user's motion, for example, a motion detected by the watch according to vibration of a vehicle, may be removed in the process of acquiring information about the motion of the mobile terminal 100 .

Meanwhile, in the present embodiment, it has been described that when the user's movement is not detected, it is determined that the user's current state is a drowsy state, but the present invention is not limited thereto. For example, it may be determined whether the user is currently drowsy by using the user's movement pattern.

This will be described with reference to FIG. 7 .

7 is a diagram for explaining a method of determining whether a user is in a drowsy state using a user's movement pattern while driving.

As shown in FIG. 7A , if drowsiness occurs while driving while the driver is not drowsy, the user's elbow may sag downward as shown in FIG. 7B . In this case, the second sensing unit 135 may sense the movement of the watch-type mobile terminal and may output a signal corresponding to the user's movement to the controller 180 .

Then, the controller 180 uses the signal received from the second sensing unit 135 to receive information related to movement of the mobile terminal, such as the movement direction, movement angle, movement speed, intensity, current position, rotation direction, and rotation angle. By acquiring it, the user's movement pattern can be acquired.

Also, the controller 180 may compare the user's movement pattern with a movement pattern pre-stored in the storage unit 170 to determine whether the user's state is currently drowsy. Specifically, the storage unit 170 may store a movement pattern when a person is in a drowsy state. In addition, the controller 180 may compare the current user's movement pattern with a movement pattern pre-stored in the storage unit 170 , and if the two patterns match, it may be determined that the user is currently drowsy.

Meanwhile, in the present embodiment, as an example of a user's movement pattern, the movement of the elbow drooping while driving has been described, but the present invention is not limited thereto, and the storage unit 170 contains a plurality of movement patterns that can be seen when a person is drowsy. may be stored. In addition, when the similarity between the user's movement pattern and a plurality of movement patterns previously stored in the storage unit 170 is equal to or greater than a specific value, the controller 180 may determine that the user's current state is a drowsy state.

Meanwhile, the controller 180 may learn a movement pattern that can be seen when a person is in a drowsy state using the user's movement pattern, and store the learning result in the storage unit 170 .

Specifically, when the user's specific movement is detected through the second sensing unit 130 and the user's oxygen saturation measured while the user's specific movement is sensed is less than or equal to a specific value than the normal value, the controller 180 controls the user's It may be determined that the specific movement is a movement pattern seen when the user is in a drowsy state.

Then, the controller 180 stores the user's specific movement as a movement pattern that can be seen when the user is in a drowsy state in the storage unit 170, and then determines whether the user is in a drowsy state using the learned user's movement pattern can do.

Meanwhile, in the present embodiment, a method for determining that the user is in a drowsy state while driving has been described, but the present invention is not limited thereto. Specifically, the storage unit 170 stores movement patterns that can be seen when a person is drowsy in various places (for example, at work, at home, in a car, etc.), and the control unit 180 controls the You can determine where the place is. In addition, the controller 180 may determine that the current state of the user is 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 controller 180 includes a method of determining whether a user is in a drowsy state using the oxygen saturation described in FIG. 5 and a method of determining whether a user is in a drowsy state using the user's movement pattern described in FIGS. 6 to 7 together. can be used to determine whether the user is drowsy.

For example, the controller 180 first determines whether the user's oxygen saturation has fallen by a specific value or more from a normal value, and if the oxygen saturation has dropped by more than a specific value from the normal value, the user's current state is a drowsy state using the user's movement pattern It can be judged whether And, if there is no movement of the user or if the movement pattern of the user matches a movement pattern that can be seen when a 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.

In addition, the controller 180 first recognizes the user's movement pattern, and if there is no user movement or the user's movement pattern matches a movement pattern that can be seen when a person pre-stored in the storage unit 170 is in a drowsy state, the user of oxygen saturation can be measured. In addition, when the user's oxygen saturation falls by a specific value or more from the normal value, the controller 180 may determine that the user's current state is a drowsy state.

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

In this regard, it will be described in detail with reference to FIG. 8 .

8 is a view for explaining a method of outputting a guide for preventing the user from drowsiness when the user's state is a drowsy state.

The controller 180 may output a voice for preventing the user from drowsiness through the sound output unit 152 . In addition, as shown in FIG. 8 , the controller 180 may output a notification in the form of a voice for guiding the user to a specific location by using the navigation module in the watch-type mobile terminal 100 .

In addition, when the watch-type mobile terminal 100 interworks with the in-vehicle navigation (not shown), the controller 180 may transmit information indicating that the user is currently drowsy to the navigation device (not shown), and the navigation is It is possible to guide the route to the place closest to the user's current location among places that can relieve drowsiness.

In addition, the controller 180 may output a vibration for relieving the user's drowsiness by using the haptic module 153 . Also, the controller 180 may output an alarm sound for relieving the user's drowsiness through the sound output unit 153 .

9 is a diagram illustrating a watch-type mobile terminal 100 that interworks with a plurality of devices in a vehicle.

Referring to FIG. 9 , the watch-type mobile terminal 100 may interwork with a plurality of devices in a vehicle. For example, the watch-type mobile terminal 100 may interwork with the in-vehicle oxygen generator 310 , the car audio 320 , the window control device 330 , the seat ventilation control device 340 , and the like.

When the user acquires information that the user is currently drowsy, the controller 180 may transmit a command for operating the in-vehicle oxygen generator 310 through the wireless communication unit 110 . When the in-vehicle oxygen generator 310 receives a 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. .

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

Also, when the user obtains information that the user is currently drowsy, the controller 180 may transmit a command to open the window to the window control device 330 through the wireless communication unit 110 . When receiving a command transmitted from the watch-type mobile terminal 100 , the window control device 330 may control the window in the vehicle to be opened.

Also, when the user obtains information that the user is currently in a drowsy state, the controller 180 may transmit a command to perform ventilation to the seat ventilation control device 340 . When receiving a command transmitted from the watch-type mobile terminal 100 , the seat ventilation control device 340 may control the seat ventilation to be performed.

Also, when the user is in an enclosed space such as a vehicle or an indoor space, the controller 180 may acquire air quality in the space. Specifically, the third sensing unit 140 may analyze a component in the current air, and may obtain a ratio of carbon dioxide or oxygen in the air according to the analysis result. And, when the ratio of carbon dioxide in the air is greater than or equal to a specific value or the ratio of oxygen is less than or equal to a specific value, the control unit 180 transmits a command to generate oxygen to the in-vehicle oxygen generator 310 or a command to open a window may be transmitted to the window control device 330 through the wireless communication unit 110 , or a command to perform ventilation may be transmitted to the seat ventilation control device 340 .

3, in the method of operating the wearable device according to an embodiment of the present invention, when information on whether the user is in a drowsy state is acquired a plurality of times, acquiring a user's drowsiness pattern by using the acquired information a plurality of times (S350) ) may be included. Specifically, the controller 180 may store the time the user was in the drowsy state in the storage 170 whenever information on whether the user is in the drowsy state is obtained.

FIG. 10 is a diagram illustrating the amount of time a user was in a drowsy state organized in a table form.

The storage unit 170 stores information about the time the user was in a drowsy state. In addition, the controller 180 may acquire the user's drowsiness pattern by using information about the time the user was in the drowsy state. For example, based on the user's drowsiness detection time 1010 on June 29, 2015, the user's drowsiness detection time 1020 on June 30, 2015, and the user's drowsiness detection time 1030 on July 2, 2015 Accordingly, the controller 180 may acquire the user's drowsiness pattern, which the user usually sleeps from 13:00 to 13:50.

Meanwhile, in the process of acquiring the user's drowsiness pattern, a specific day of the week may be excluded. For example, workers or students may have different sleep times on weekdays when they are mostly at work or school and on weekends when they are mostly at home. Accordingly, the controller 180 detects the user's drowsiness pattern without using the user's drowsiness detection time 1050 on Saturday, July 4, 2015 and the user's drowsiness detection time 1060 on Sunday, July 5, 2015 can be obtained

Meanwhile, the controller 180 may control the display unit 151 to output the acquired user's drowsiness pattern as a UI image. Accordingly, the user can recognize his or her drowsiness pattern, and thus the user can exercise or take a break at a time when his or her drowsiness is expected.

3, in the method of operating the wearable device according to an embodiment of the present invention, outputting a guide for preventing the user's drowsiness at a time when the user's drowsiness is expected by using the user's drowsiness pattern (S360) may include.

This will be described in detail with reference to FIG. 11 .

11 is a view for explaining a guide method for preventing drowsiness of a user.

The controller 180 may obtain information about a time when the user's drowsiness is expected by using the user's drowsiness pattern. And, when the user's drowsiness reaches the expected time, the controller 180 may output a UI for recommending exercise to the user as shown in FIG. 11A . Also, as shown in FIG. 11B , the controller 180 may output a UI indicating the type of exercise required for relieving drowsiness or an exercise time required for relieving drowsiness. Also, the controller 180 may count and display the number of times the user exercised using the user's movement sensed through the second sensing unit 135 . Also, the controller 180 may display the elapsed time or the remaining time after the start of the exercise by using the user's movement sensed through the second sensing unit 135 .

Meanwhile, in the present embodiment, it has been described that the guidance for preventing the user's drowsiness is output through the UI, but the present invention is not limited thereto, and the guidance for preventing the user's drowsiness may be output in various ways such as voice or vibration.

Meanwhile, the controller 180 may output a guide for preventing the user from drowsiness only on a specific day of the week. For example, since it is not necessary to output a guide for preventing drowsiness of the user on weekends when people mainly take a break at home, the controller 180 provides a guide for preventing drowsiness of the user on Mondays, Tuesdays, and Wednesdays. , can be printed only on Thursdays and Fridays.

Also, the controller 180 may determine the current location of the user and determine whether to output a guide for preventing the user from drowsiness according to the determined location of the user. For example, when the user is in a car or an office, the controller 180 may output a guide for preventing the user from drowsiness, and when the user is at home, the controller 180 may provide a guide for preventing the user from drowsiness may not be output.

Meanwhile, in the above embodiment, it has been described that a guide for preventing the user's drowsiness is output at a time when the user's drowsiness is expected by using the user's drowsiness pattern, but the present invention is not limited thereto.

For example, it may be implemented in such a way that the air quality in the space where the user is located is determined through the third sensing unit 140 , and a guide for preventing the user from drowsiness is output when the amount of oxygen in the air is insufficient.

In addition, the third sensing unit 140 may sense the user's heartbeat, and the controller 180 may measure the heartbeat-based stress using the sensed user's heartbeat. Specifically, the controller 180 may measure the heartbeat-based stress by using a change in the heartbeat cycle (in other words, a change in heart rate per unit time). Since the user's drowsiness is induced when the heartbeat-based stress is present, the controller 180 may output a guide for preventing the user's drowsiness when the heartbeat-based stress is present.

Meanwhile, the method of operating a wearable device according to an embodiment of the present invention includes communicating with one or more external devices constituting a home network system, and operating one or more external devices so that the external device operates in a sleep mode when the user is in a sleepy state. control may be included.

This will be described in detail with reference to FIG. 12 .

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

12 , the watch-type mobile terminal 100 may communicate with one or more external devices 510 , 520 , 530 , 540 , 550 , 560 , 570 , and 580 constituting a home network system. Specifically, the watch-type mobile terminal 100 includes Bluetooth™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Near Field Communication (NFC), It communicates with the home network server using short range communication such as Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus), or with the home network server using the Internet communication network. can communicate The home network server may communicate with one or more external devices 510 , 520 , 530 , 540 , 550 , 560 , 570 and 580 through the home network communication network. However, the present invention is not limited thereto, and the watch-type mobile terminal 100 communicates with one or more external devices 510 , 520 , 530 , 540 , 550 , 560 , 570 and 580 constituting the home network system and short range communication. can also be used to communicate directly.

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

Specifically, when the controller 180 obtains information that the current user is in a drowsy state, the controller 180 commands to operate in the sleep mode with at least one of the one or more external devices 510 , 520 , 530 , 540 , 550 , 560 , 570 , 580 . can be transmitted.

For example, the controller 180 may transmit a command for adjusting the wind strength or temperature of the air conditioner 530 , or may transmit a command for reducing or turning off the volume of the audio 540 . Also, the controller 180 may transmit a command to reduce or turn off the noise of the washing machine 550 or transmit a command to reduce or turn off the noise of the cleaner 560 . Also, the controller 180 may transmit a command for reducing or turning off the volume of the TV 570 , and may transmit a command for reducing or turning off the brightness of the light 580 . In addition, a command for maintaining the optimum amount of oxygen or optimum carbon dioxide during sleep may be transmitted to the air purifier 510 or the air washer 520 .

In addition, the controller 180 may acquire an indoor air quality distribution. Specifically, the third sensing unit 140 may analyze a component in the current air, and may obtain a ratio of carbon dioxide or oxygen in the air according to the analysis result. In addition, when the ratio of carbon dioxide in the air is greater than or equal to a specific value or the ratio of oxygen is less than or equal to a specific value, a command for increasing the ratio of oxygen may be transmitted to the air purifier 510 or the air washer 520 .

Meanwhile, in the present embodiment, it has been described that the third sensing unit 140 analyzes air components, but the present invention is not limited thereto. For example, the home network system 500 may include an air quality measuring device (not shown) capable of analyzing components in indoor air, and may transmit the measurement result to the watch-type mobile terminal 100 . In this case, when it is determined that the ratio of carbon dioxide in the air is greater than or equal to a specific value or the ratio of oxygen is less than or equal to a specific value based on the received measurement result, the controller 180 issues a command to increase the ratio of oxygen to the air purifier 510 or air can be transmitted to the washer 520 .

Meanwhile, the controller 180 may individually control one or more devices constituting the home network system by using the user's sleep state.

Specifically, the controller 180 determines whether the user is currently drowsy, napping, or taking a deep sleep by using the amount or frequency of the user's movement detected by the second sensing unit 135 . can In addition, the controller 180 compares the movement pattern of the user with the movement pattern in the drowsy state, the movement pattern in the nap state, and the movement pattern in the state taking a deep sleep, previously stored in the storage unit 170 , It may be determined whether the user is currently drowsy, napping, or taking a deep sleep.

In addition, when the user is currently asleep or sleeping, the controller 180 controls the air conditioner 530 , the audio 540 , the washing machine 550 , and the vacuum cleaner 560 to induce a deep sleep of the user. , the TV 570 and the lighting 580 may transmit a command to operate in the sleep mode. Also, when the user is taking a deep sleep, the controller 180 may transmit a command for maintaining an optimal amount of oxygen or an optimal carbon dioxide during sleep to the air purifier 510 or the air washer 520 .

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

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

In addition, when a user input for starting the sleep mode is received, the controller 180 may transmit a command to cause at least one of 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, a notification indicating that one or more external devices can be operated in the sleep mode is output, and when a user input is received, one or more external devices are collectively operated in the sleep mode, so that a sleeping user can be saved. A simple button operation can help you get a good night's sleep.

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

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

In addition, when the user's state is a drowsy state, the current user's location can be determined. (S1420) Specifically, a nearby communicable external device is searched using a short-distance wireless communication network, and information about the location where the external device is located is retrieved. Using this, the controller 180 may determine whether the current location of the watch-type mobile terminal 100 is in a car, an office, or a home. In addition, the input unit 120 may receive information about a place where an external communicable device is located nearby, and the control unit 180 stores the received information in the storage unit 170, where the external device is located. It can be used to determine the location.

When the location of the watch-type mobile terminal 100 is a car or an office, the controller 180 outputs a guide for preventing the user from drowsiness or for preventing the user from drowsiness at a time when the user's drowsiness is expected. Information can be output. (S1430, S1440)

Meanwhile, when the place where the watch-type mobile terminal 100 is located is home, the controller 180 may obtain information about the current time (S1450).

Meanwhile, when the current time is the first time, the controller 180 may output a guide for preventing the user from drowsiness ( S1460 ). Here, the first time may be a time for preventing the user from drowsiness. For example, the first time may be a work time on a weekday.

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

Meanwhile, in the previous embodiment, it has been described that the wearable device is a watch-type mobile terminal, but the present invention is not limited thereto, and may be any device that is worn on the user's body to detect the user's movement or measure the user's blood oxygen saturation level. have.

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

For example, the wearable device includes only the components of the first sensing unit 130 and the second sensing unit 135 , and the rest of the components except for the first sensing unit 130 and the second sensing unit 135 are wearables. It may be implemented to be included in a mobile terminal interworking with the device.

On the other hand, the control unit 180 is a component in charge of controlling the device in general, and may be used interchangeably with terms such as a central processing unit, a microprocessor, and a processor.

The present invention described above can be implemented as computer-readable codes on a medium in which a program is recorded. The computer-readable medium includes all types of recording devices in which data readable 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 a carrier wave (eg, transmission through the Internet) includes implementation in the form of. In addition, the computer may include the control unit 180 of the terminal. Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention.

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

Claims (15)

delete delete delete delete delete delete delete delete In the wearable device,
a storage unit for storing a plurality of movement patterns indicating a drowsy state in each of a plurality of places;
a first sensing unit configured to acquire data that is a basis for measuring the blood oxygen saturation level of the wearable device user;
a second sensing unit for detecting a user's movement of the wearable device; and
If the oxygen saturation measured based on the data obtained through the first sensing unit is lower than a normal value by more than a specific value, and the user's movement pattern obtained through the second sensing unit matches the pre-stored movement pattern, the user Including a control unit that determines that the drowsy state,
the control unit
Determining the place where the current user is located, and comparing the movement pattern corresponding to the determined place with the movement pattern of the current user to determine the drowsy state
wearable devices. delete delete delete 10. The method of claim 9,
the control unit
When the user is drowsy, outputting a guide for preventing the user from drowsiness
wearable devices. 10. The method of claim 9,
the control unit
When the information on whether the user is in a drowsy state is obtained a plurality of times, the user's drowsiness pattern is obtained by using the information obtained a plurality of times,
outputting a guide for preventing the user's drowsiness at a time when the user's drowsiness is expected by using the user's drowsiness pattern
wearable devices. 10. The method of claim 9,
the control unit
When the user is in a drowsy state, transmitting an oxygen generation command to an oxygen generation device communicating with the wearable device
wearable devices.

Images