KR20230072606A - Wearable devices - Google Patents

Abstract

The present invention discloses a wearable device comprising: a fingerprint recognition module for obtaining fingerprint image information; a capacitive sensor for generating a fingerprint detection signal; a touch sensor for transmitting the detection signal of the capacitive sensor; an IC chip for storing information on a plurality of cards; an RFID module and an NFC module for communicating data in a non-contact manner; a main control part for registering and storing user authentication information, and activating the IC chip to transmit, through either the RFID module or the NFC module, information on one card selected by a user among information on the plurality of cards; a display part for visually displaying information on the plurality of cards and receiving input manipulation for the information on the one card selected by the user among information on the plurality of cards; a power generation part for converting the vibration thereof into electricity; a capacitor for storing and supplying electric energy produced by the power generation part; a first current control part for receiving the detection signal of the capacitive sensor and controlling current supplied from the capacitor into a predetermined first set value to be supplied to the fingerprint recognition module, the IC chip, the main control part and the display part; and a second current control part for controlling the current supplied from the capacitor into a predetermined second set value to be supplied to the NFC module. Therefore, provided is a wearable device capable of supplying power consistently and efficiently and minimizing the consumption of electric energy.

Description

Wearable devices {WEARABLE DEVICES}

The present invention relates to a wearable device that is worn and used on a user's wrist like an accessory, and more particularly, by holding various types of cards such as credit cards, check cards, transportation cards, welfare cards, access cards, membership cards, and card keys. It is about a wearable device that can be used conveniently without having to carry it or take it out of the wallet.

As the monetary economy develops today, various types of credit cards, various check cards and transportation cards are being used for convenience of payment and transparency of accounting.

However, if a user has several types of cards, they take up a lot of volume in the wallet, etc., making it very inconvenient to carry. There is the hassle of having to reissue.

In order to solve this problem, a smart card that integrates various types of cards such as a credit card, a cash card, a transportation card, and an access card into one to increase the convenience of carrying and using is widely spread.

These smart cards are equipped with a microprocessor (MPU), operating system (COS), security module, memory (EEPROM), integrated circuit chip, etc., and can stably process specific transactions.

In particular, contactless smart cards have built-in modules and antennas capable of wireless communication, so they can detect radio frequency (RF) signals around them, exchange data, and communicate with input devices.

However, conventional smart cards are inconvenient to carry because they have to be carried in a wallet or pocket due to their morphological characteristics, and there is a risk of loss or damage. There is a significant downside to this.

Recently, a smart card that operates by generating driving power through energy harvesting has been developed, but this causes a problem of uneven output performance depending on the characteristics of the terminal, and as a result, it does not work when the voltage output is low, making it difficult to adjust the output. There are necessary problems.

The background art or prior art described above herein is information possessed by the present inventor or acquired in the process of deriving the present invention, and is only intended to help understand the technical significance of the present invention, prior to the filing of the present invention, the technology to which this invention belongs It should be noted that it does not mean widely known technologies in the field.

KR 10-2019-0002109 A(2019.01.08) KR 10-2016-0090633 A(2016.08.01) KR 10-2226903 B1(2021.03.05) KR 10-2009-0001207 A(2009.01.08)

Accordingly, the present inventor comprehensively considers the above-mentioned matters and at the same time solves the technical limitations and problems of the existing smart card technology, credit card, check card, transportation card, welfare card, access card, membership card, card It can be easily worn and used on the user's wrist at all times like an accessory without having to carry various types of cards such as keys or take it out of the wallet, and also converts the user's movement into electrical energy to continuously and efficiently supply power. In addition, the present invention was created as a result of continuous research with painstaking efforts to develop a wearable device with a new structure that minimizes electrical energy consumption by supplying power only to a specific area required according to the operating state.

Therefore, the technical problem and object to be solved by the present invention is to provide a wearable device capable of minimizing electric energy consumption while continuously and efficiently supplying power by converting a user's movement into electric energy.

Here, the technical problems and objects to be solved by the present invention are not limited to the technical problems and objects mentioned above, and other technical problems and objects that are not mentioned are the general knowledge in the technical field to which the present invention belongs from the description below. Those who have it will be able to clearly understand.

Specific means according to an aspect of the present invention for effectively achieving a specific technical purpose while embodying a new idea for solving the technical problem of the present invention as described above is a body to be worn on the user's wrist. A connected band, a fingerprint recognition module provided on the body and acquiring fingerprint image information of a user's finger, a capacitive sensor provided around the fingerprint recognition module and generating a detection signal according to a user's fingerprint contact, the capacitive change sensor A touch sensor that transmits sensor detection signals to the main control unit, an IC chip that stores a plurality of card information and has a card function and security module, an RFID module and NFC module for non-contact data communication, and the user authentication information is registered. and stored, receives a detection signal of the capacitive sensor through the touch sensor, and determines whether or not the user's fingerprint image information input through the fingerprint recognition module is normally obtained and whether the user matches the user authentication information. and if it is a valid user, the IC chip is activated to classify the plurality of card information, and any one card information selected by the user among the plurality of card information is transmitted through either the RFID module or the NFC module. A main controller that transmits, a display unit that visually displays the plurality of card information under the control of the main controller, and receives an input operation for one card information selected from the user, and the body A built-in self-generating unit that converts its own vibration into electricity, a capacitor that stores and supplies electric energy produced by the self-generating unit, and converts the current supplied from the capacitor to a predetermined first set value under the control of the main control unit. by controlling the fingerprint recognition module, the IC chip, the first current controller supplied to the main controller and the display unit, and the current supplied from the capacitor to a predetermined second set value according to the control of the main controller. Suggests a wearable device characterized in that employed including a second current control unit supplied to the NFC module.

As a result, the present invention integrates various types of cards such as credit cards, transportation cards, welfare cards, access cards, membership cards, and card keys into one and can be worn on the user's wrist like accessories, improving portability and convenience. In addition, security can be enhanced by verifying identity through fingerprint recognition.

In addition, by converting the user's movement into electrical energy and supplying power continuously and efficiently, it can be used stably for a long time, unlike before, there is no need to replace the battery. consumption can be minimized.

In addition, in a preferred embodiment of the present invention, the main control unit identifies (pays, pays, authentication, etc.), the Tag ID (Metal ID) embedded in the IC chip is transmitted through the RFID module, and a specific target is identified (payment, authentication, etc.) using an integrated circuit. In the case of a card, an application (app) may communicate with an NFC payment terminal through the NFC module to control payment.

In addition, in a preferred embodiment of the present invention, the self-generation unit includes a linear generator for producing electric energy through linear linear motion, an EMI filter for removing noise, a rectifier for converting alternating current to direct current, and obtained through the rectifier. It includes a converter that converts a pulsating current input voltage into a direct current output voltage. In particular, the linear generator includes a housing formed in a hollow shape made of a non-magnetic material, a stator coil fixed to the center of the housing, and fixed to both sides of the stator coil. It is configured to include a guide and a permanent magnet slidably mounted along the guide while surrounding a part of the longitudinal direction of the stator coil in the housing, so that the wearable device follows the guide of the permanent magnet during its own movement An induced current may be generated in the stator coil by changing a magnetic field by linear reciprocating motion.

In addition, in a preferred embodiment of the present invention, the fingerprint recognition module includes a fingerprint sensor for obtaining fingerprint image information in response to a fingerprint input from a user, a pressure sensor for detecting pressure information according to the fingerprint input, and Security can be further enhanced by further comprising a comparison processing unit for recognizing a user based on the fingerprint image information obtained from the fingerprint sensor and the pressure information detected from the pressure sensor.

According to the technical idea and embodiment of the present invention on which the unique solution is based to solve the above technical problems, various types of credit cards, transportation cards, welfare cards, access cards, membership cards, card keys, etc. By integrating the card into one, it can be worn and used on the user's wrist like an accessory, improving portability and convenience, as well as enhancing security by authenticating identity through fingerprint recognition to prevent illegal use in case of theft or loss. can do.

In addition, by converting the user's movement into electrical energy and supplying power continuously and efficiently, it can be used stably for a long time without any inconvenience such as battery replacement. can be minimized.

Here, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view illustrating a wearable device according to an embodiment of the present invention.
2 is a block diagram illustrating a wearable device according to an embodiment of the present invention.
3 is a block diagram showing a self-generating unit among components of a wearable device according to an embodiment of the present invention.
4 is a configuration diagram showing a linear generator of a self-generating unit among components of a wearable device according to an embodiment of the present invention.
5 is a block diagram specifically showing a main control unit among components of a wearable device according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

Prior to this, the terms to be described below are defined in consideration of functions in the present invention, which specifies that they should be interpreted as concepts consistent with the technical spirit of the present invention and meanings commonly used or commonly recognized in the art.

In addition, if it is determined that a detailed description of a known function or configuration related to the present invention may obscure the gist of the present invention, the detailed description will be omitted.

The accompanying drawings may be exaggerated or simplified in part for explanation of the configuration and operation of the technology and convenience and clarity of understanding, and it is not that each component on the drawing exactly matches the actual size and shape. reveal that it is not

In addition, in this specification, the term and / or is meant to include a combination of a plurality of related items described or any item among a plurality of related items described, and when a part includes a certain component, this is particularly the opposite description. As long as there is no , it means that other components can be included more than not excluding other components.

That is, terms such as 'include', 'include', or 'have' described in this specification mean that a feature, number, step, operation, component, part, or combination thereof exists. However, it should be understood that it does not exclude the possibility of the presence or addition of one or more other features or numbers, step-operating elements, parts, or combinations thereof.

In addition, each step may occur in a different order from the specified order unless a specific order is clearly described in context. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

The meaning of the terms "unit" and "unit" used in the present invention means a module type that plays a role or unit that processes at least one desired function or certain operation in a system, which is hardware, software, or hardware. And it can be implemented as a means through a combination of software, or a device or assembly capable of performing an independent operation.

The meaning of the term "module" used in the present invention may mean a unit including one or a combination of two or more of hardware, software, or firmware, and may also refer to a unit, logic ), can be used interchangeably with terms such as logical block, component, circuit, etc., and can be a minimum unit or part of an integrally constituted part, or Alternatively, it may be a minimum unit or part thereof that performs more functions, and may be implemented mechanically or electronically.

In addition, terms such as top, bottom, top, bottom, or top, bottom, top, bottom, front and rear, left and right are used for convenience to distinguish the relative positions of each component. For example, an upper part in the drawing may be named or referred to as an upper part, a lower part may be named or referred to as a lower part, a longitudinal direction may be named or referred to as a front-back direction, and a width direction may be named or referred to as a left-right direction.

Also, terms such as first and second may be used to describe various elements. That is, terms such as first and second may be used for the purpose of distinguishing only one element from another element. For example, a first component may be referred to as a second component without departing from the scope of the present invention, and the second component may also be referred to as a first component.

1 and 2, the main elements constituting the wearable device according to the embodiment of the present invention are a body 10, a band 20, a fingerprint recognition module 30, and a capacitive sensor 40 , touch sensor 50, IC chip 60, RFID module 70, NFC module 80, main control unit 90, display unit 100, self-powered unit 110, capacitor 120, It includes a first current control unit 130 and a second current control unit 140.

The body 10 has a substantially compact shape such as a square, rectangle, circle, or oval, and has a display unit 100 mounted on the front surface, and various electronic components are embedded therein.

Here, the body 10 is made of plastic such as ABS or polycarbonate, ceramic, wood, metal such as polished aluminum, steel, stainless steel, titanium or magnesium. It may be formed of a non-deformable and rigid material such as an alloy of the base.

In addition, the body 10 may be formed in a shape curved in a streamlined shape along the shape of the wrist of the human body when viewed from the side.

The band 20 is connected to the body 10 to wear the wearable device on the user's wrist and is formed to surround the user's wrist.

That is, the band 20 may have a loop or ring shape surrounding the user's wrist together with the body 10 .

Here, the band 20 is flexible such as textile, leather, rubber, synthetic fiber, metal, wood, ceramic or plastic. It may be formed of a material having a high elasticity or other suitable material.

In addition, the band 20 may be configured in a multi-layered stacked form of several materials.

In addition, the band 20 may include an elastic part or a fastener that allows the wearable device to be attached to and detached from the user's wrist and to adjust the length. At this time, the fastener may include, for example, a buckle, a snap-fit hook structure, a snap button, or a hook-and-loop fastener.

The fingerprint recognition module 30 is provided in the body 10 to acquire fingerprint image information of a certain area according to a user's fingerprint input.

As shown in FIG. 5 , the fingerprint recognition module 30 includes a fingerprint sensor 31 that obtains fingerprint image information in response to a fingerprint input from a user.

Also, the fingerprint sensor 31 may sense (part of) the user's fingerprint through the sensing area. In this case, the size of the sensing area of the fingerprint sensor 31 may be smaller than the size of the fingerprint.

For example, the sensing area of the fingerprint sensor 31 may have a rectangular shape smaller than the size of a fingerprint.

Also, the fingerprint sensor 31 may generate fingerprint image information (image) by capturing the sensed fingerprint. In this case, when the size of the sensing area of the fingerprint sensor 31 is smaller than the size of the fingerprint, fingerprint image information generated by the fingerprint sensor 31 may correspond to a partial image including a part of the fingerprint.

Here, the fingerprint image information may be used to register or recognize a user's fingerprint.

For example, fingerprint image information may be registered in the registration step, and the registered fingerprint image information may be stored in the storage unit 34 .

Also, in the recognition step, the fingerprint image information may be compared with pre-registered fingerprint image information, and a user authentication result or user identification result may be derived depending on whether they match each other.

In addition, when a fingerprint is input, the contact surface may be deformed by the pressure of the finger, and the input fingerprint image information may be deformed locally. That is, even if it is the same fingerprint, the force distribution of the finger is different, so the fingerprint is distorted, and the user inputs the fingerprint with different pressure depending on the situation.

For example, distribution characteristics of ridges and valleys of a fingerprint may be changed according to a pressure applied to the fingerprint sensor 31 by a user when inputting the fingerprint.

The fingerprint sensor 31 classifies the pressure applied by the user at the time of fingerprint input into a plurality of levels, and uses them together with the input fingerprint image to improve recognition performance.

Here, the fingerprint sensor 31 detects fingerprint image information such as an optical method, a semiconductor device method that detects capacitance or electrical conduction, an ultrasonic method, a mutual capacitance method, an IR image capture method, a thermal detection method, or a combination thereof. A variety of ways to obtain it can be employed.

For example, in the optical method, when strong light is projected onto a platen and the fingerprint shape of the fingertip is reflected, the reflected fingerprint image can be received through a CCD by passing through a high refractive lens, and in the semiconductor device method, the skin's electricity The shape of the fingerprint contacted on the surface of the silicon chip can be read as an electrical signal by using the conductivity property.

In addition, when the fingerprint recognition module 30 is integrated on the display unit 100, the surface of the display unit 100 can be implemented as a sensing area and can sense a fingerprint from a user's finger contacting the display unit 100. can

Meanwhile, the user may refer to a user registered through a preset method such as a user authentication process in order to use the wearable device.

The capacitive sensor 40 is formed on the edge of the fingerprint recognition module 30 to generate a detection signal according to a user's fingerprint contact.

That is, a fine current of the degree of static electricity flows through the capacitive sensor 40, and when a user's fingerprint is touched, it is sensed and a signal is transmitted to the touch sensor 50. Accordingly, the main control unit 90 generates a first current The inactive fingerprint recognition module 30 is activated through the controller 130 .

For example, through the setting of the main control unit 90 electrically connected to the capacitive sensor 40, the first current control unit 130 may control power supply when a fingerprint contact is detected for a certain period of time or longer.

The touch sensor 50 transmits a contact detection signal from the capacitive sensor 40 to the main controller 90 to activate the fingerprint recognition module 30, the IC chip 60, and the display unit 100. ) and acts as a switch that transmits

That is, the touch sensor 50 is electrically connected to the capacitive sensor 40 and the main controller 90 .

The IC chip 60 stores a plurality of card information and user information used for payment or personal authentication in the form of encrypted data, and is embedded in the body 10 with card functions and security modules.

That is, the IC chip 60 receives an input signal from the main control unit 90 and is equipped with a processor for generating, controlling, and calculating commands according to the input signal, and a memory for storing user authentication information and the like.

For example, the IC chip 60 receives a user authentication result from the main control unit 90, calculates the corresponding information using a predetermined algorithm, etc., and displays the calculated result data through the main control unit 90. It can be delivered to unit 100.

Here, the IC chip 60 may include information related to a plurality of circuits for implementing a processor and a memory, and program commands executed through the processor may include a plurality of steps for performing card payment. there is.

In addition, the IC chip 60 may include a secure element (SE) for storing stored information or applets in hardware such as a USIM or a microSD card in order to encrypt and store the stored information or applets.

Also, the IC chip 60 may include an application in which a plurality of card information is stored.

That is, the application may activate any one card information in response to a signal received from the main control unit 90 . For example, the main control unit 90 may drive an application based on user information received from the fingerprint recognition module 30 .

In addition, the IC chip 60 may classify and store a plurality of card information based on card type, frequency of use, issuer, etc. so that the user can select the card to be used quickly and conveniently.

Here, the plurality of card information includes EMV standard credit card, check card, transportation card, welfare card, access card, membership card, card key, serial number such as digital door lock key, expiration date, CVC (Card Validation Code), owner name , a thumbnail (thumbnail), a separator, and an identifier for identifying or confirming a corresponding card when a user uses or selects a card.

Meanwhile, the IC chip 60 may store payment approval information, user authentication information, etc. received from an external device or may provide the information to the main control unit 90 .

The RFID module 70 is embedded in the body 10 for non-contact data communication.

That is, the RFID module 70 includes an RFID antenna for performing non-contact data communication with an RFID reader and an integrated circuit for processing a received signal.

For example, the RFID module 70 may transmit specific card information stored in the IC chip 60 as a signal in response to an RF radio signal transmitted from an RFID reader through an antenna.

The NFC module 80 is embedded in the body 10 for non-contact data communication (ISO/IEC 14443).

That is, the NFC module 80 may perform data exchange through wireless communication with a communication device or contactless payment with a card reader.

For example, when the NFC module 80 is activated, card payment information or user authentication information stored in the IC chip 60 may be transmitted to an external payment proxy terminal, payment proxy server, or user authentication device.

Here, the NFC module 80 may include an antenna for non-contact data communication with a communication device or card reader, and a processor for processing data transmitted and received through the antenna.

The main control unit 90 generally controls the wearable device, and user authentication information is registered and stored therein.

In addition, the main control unit 90 receives the user's fingerprint image information input through the fingerprint recognition module 30 and determines whether the fingerprint image information is normally obtained and whether the user matches pre-stored user authentication information. If it is a legitimate user, the IC chip 60 is activated to classify the plurality of card information, and any one card information selected by the user among the plurality of card information is transferred to either the RFID module 70 or the NFC module 80. send through

For example, the main control unit 90 receives the user's fingerprint image information from the fingerprint recognition module 30, extracts its characteristics, and compares and matches the user's characteristic information previously registered in the memory, that is, user authentication information. When they match each other, a predetermined fingerprint matching signal is generated and output to the first current controller 130 .

In addition, if any one card information selected by the user among the plurality of card information is a card that identifies a specific object (payment, authentication, etc.) using a radio frequency method, it is embedded in the IC chip 60 In the case of a card that transmits a Tag ID (Metal ID) through the RFID module 70 and uses an integrated circuit to identify a specific target (payment, authentication, etc.), the USIM in the IC chip 60 or Using a secure element (SE, Secure Element) stored in hardware such as a microSD card, it is connected to the NFC payment terminal through the NFC module 80 or connected to the NFC payment terminal through the NFC module 80 as an application (app). Communicate and control to perform payment.

Here, the main control unit 90 may include a processor and memory for registering and storing user authentication information.

For example, the main control unit 90 is a micro controller unit (Micro Controller Unit) or MPU (Micro Processor Unit) programmed to set functions and perform predetermined tasks and a flash memory for pre-registering and storing user authentication information. It may be a circuit board on which is mounted.

That is, the processor of the main control unit 90 receives and determines the user's fingerprint image information from the fingerprint recognition module 30, and executes calculations or data processing accordingly. It may store instructions or data received from other components or generated by the processor or other components.

Meanwhile, the main control unit 90 may display various types of information received from an external device through the display unit 100 so that the user may use and recognize the card when using the card.

The display unit 100 visually displays image information such as the plurality of card information under the control of the main control unit 90, and receives an input operation for any one card information selected from the plurality of card information. do.

Also, the display unit 100 may visually display various types of information such as multimedia data or text data for use when a user uses a wearable device through a black and white or color LCD or LED.

For example, the display unit 100 displays power on/off information of the wearable device, fingerprint verification information when a fingerprint is confirmed through fingerprint recognition, payment response information when a payment request is requested, or, in the case of a payment mode, card payment and A related User Interface (UI) or Graphic User Interface (GUI) may be displayed or information of a card performing payment may be displayed.

Alternatively, the display unit 100 may transfer commands or data input from the user through the touch screen to the main controller 90 and the processor and memory of the IC chip 60 .

Meanwhile, when the display unit 100 is implemented as a touch screen, the user searches for card information (eg, company logo, card appearance, card name, etc.) displayed on the display unit 100 by touching or scrolling. The card may be selected or deselected, and the card may be changed by moving along a predetermined path (eg, sweep method) by touching or contacting a portion where a card change key is displayed.

In particular, in the case of moving along a predetermined path by contacting the touch screen, card classification change, card type change, card selection, card selection cancellation, etc. may be performed according to a touch command input to the touch screen.

For example, by operating the touch screen up and down, the card classification such as credit card, check card, transportation card, welfare card, access card, card key, etc. can be changed, and by operating the touch screen left and right, the card type within the corresponding card classification can be changed.

Here, the display unit 100 includes a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and an electronic ink display. (E-ink display).

In addition, the display unit 100 may be used as an input device in addition to an output device when a touch sensor is implemented as a touch screen forming a mutually layered structure. That is, the touch screen displays the user interface (UI) screen of the card, receives input manipulation for a location corresponding to the screen from the user, and touch manipulation, slide manipulation, swipe manipulation, knock manipulation, etc. It can receive various input manipulations of

The self-powered unit 110 is built into the body 10 to convert vibration of the wearable device itself into electricity.

Here, as shown in FIG. 3, the self-generating unit 110 includes a linear generator 111 that produces electric energy through linear motion, an EMI filter 112 that removes noise, and a rectifier 113 that converts alternating current into direct current. ) and a converter 114 for converting the pulsating current input voltage obtained through the rectifier 113 into a direct current output voltage.

In particular, the linear generator 111, as shown in FIG. 4, has a housing 115 formed in a hollow shape, a stator coil 116 fixed to the center of the housing 115, and a stator coil 116 fixed to both sides of the stator coil 116. With a neodymium permanent magnet 118 mounted so that it can slide freely along the guide 117 while minimizing friction while enclosing a part of the lengthwise direction of the stator coil 116 within the guide 117 and the housing 115 It is composed of a permanent magnet ( 118) may vibrate in the direction of winding of the stator coil 116 to change the magnetic field to generate an induced current in the stator coil 116.

In addition, the electromotive force generated in the stator coil 115 is stored in the capacitor 120 electrically connected to its terminal.

Here, the housing 115 and the guide 117 are preferably formed of a non-magnetic material to prevent distortion of the magnetic field of the permanent magnet 118 .

In addition, the N pole and the S pole of the permanent magnet 118 are polarized in the vertical direction. That is, when the N pole of the permanent magnet 118 is upward, the S pole may be disposed downward, and when the S pole is downward, the N pole may be disposed upward.

On the other hand, the magnitude of the electromotive force or generated voltage according to Faraday's law is proportional to the frequency of reciprocating motion, the number of windings of the stator coil 115, the magnetic flux density of the permanent magnet 118, and the separation distance during reciprocating motion.

The capacitor 120 is built into the body 10 to store and supply electric energy produced by the self-powered unit 110 .

The first current control unit 130 receives the detection signal of the capacitive sensor 40 through the touch sensor 50 and adjusts the current supplied from the capacitor 120 to a predetermined first set value to obtain a fingerprint recognition module. (30), the IC chip 60, the main controller 90 and the display unit 100 can be supplied.

For example, the first current control unit 130 supplies a current of about 30 mA/h as a first set value to the fingerprint recognition module 30, the IC chip 60, the main control unit 90 and the display unit for 10 to 20 seconds ( 100) can be controlled to supply.

The second current controller 140 may adjust the current supplied from the capacitor 120 to a predetermined second set value according to the control of the main controller 90 and supply the current to the NFC module 80 .

For example, the second current controller 140 may control to supply a current of about 2 mA/h to the NFC module 80 for 2 to 3 seconds as a second set value.

Here, the first and second current control units 130 and 140 have been described as being separated from the main control unit 90, but according to other forms, the first and second current control units 130 and 140 are the main control unit 90 ) and can be implemented as one.

When a legitimate user's fingerprint is recognized, the wearable device according to the embodiment of the present invention configured as described above provides payment information or user identification information stored in the IC chip 60 to perform operations such as card payment or user identification. there is.

At this time, power of the capacitor 120 is provided to the fingerprint recognition module 30 in response to the operation of the touch sensor 50 to detect a fingerprint.

For example, the capacitive sensor 40 detects when a user's fingerprint is touched in a standby state in which a fine current of the degree of static electricity flows, and sends a power ON signal to the main control unit 90 through the touch sensor 50. and the main control unit 90 transmits a control signal to the first current control unit 130, and the first current control unit 130 supplies the power of the capacitor 120 to the fingerprint recognition module 30 with a switch and current adjustment function. and the main control unit 90 and the display unit 100 are supplied and activated.

That is, when a user's contact is detected by the capacitive sensor 40, a signal is transmitted to the touch sensor 50, and the touch sensor 50 transmits an input signal to the main controller 90, so that the main controller 90 It can be in a sleep state and activated when a power operation signal is sensed.

At this time, the main controller 90 recognizes the signal received from the touch sensor 50 as a power input signal and controls the first current controller 130 to transfer the current supplied from the capacitor 120 to the fingerprint recognition module 30. It can be activated by providing it to the display unit 100 .

As such, in a state in which there is no input by the user's touch, the current of the capacitor 120 is hardly consumed, and the fingerprint recognition module 30, the main control unit 90 and the display according to the input signal through the capacitive sensor 40 Since each unit 100 wakes up from a sleep state and selectively supplies current, electrical energy consumption can be minimized.

In addition, when the user puts their finger on the fingerprint recognition module 30, the finger contacts the capacitive sensor 40 at the same time to improve the detection operation speed, thereby reducing the interval between power operation and fingerprint recognition time, so that the user can separate It is possible to have the same feeling as when fingerprint recognition is performed immediately when a finger is touched without waiting for power operation.

That is, user convenience can be maximized by implementing the fingerprint recognition module 30 and the operation button function in an integrated form.

On the other hand, the main control unit 90 may receive the user's fingerprint image information input through the fingerprint recognition module 30 to determine whether the fingerprint image information matches pre-stored user authentication information, based on the result In the case of a valid user, driving power may be supplied to the IC chip 60 to activate it, thereby classifying a plurality of pre-stored card information.

That is, the main control unit 90 receives the user's fingerprint image information from the fingerprint recognition module 30, compares it with the fingerprint information stored in the memory, that is, the user authentication information, and if they match, a matching signal ) is generated and transmitted to the first current control unit 130, and when the first current control unit 130 receives the fingerprint match signal from the main control unit 90, it operates the IC chip 60 and the display unit 100 and Classify and output a plurality of pre-stored card information.

At this time, when the main controller 90 activates the IC chip 60, various information stored in the IC chip 60 may be transmitted to the outside or a specific applet may be activated.

In addition, the main control unit 90 may supply power to the IC chip 60 or connect to either the RFID module 70 or the NFC module 80 to activate the communication function.

In addition, the main control unit 90 outputs to the display unit 100 whether or not the user's fingerprint image information input through the fingerprint recognition module 30 has been properly authenticated, the user's fingerprint recognition result, and classified card information to the display unit 100 for display. And, among the plurality of card information output through the display unit 100, one card information to be used selected by the user's touch is displayed, and predetermined communication between the RFID module 70 and the NFC module 80 is performed. It can be sent through any means.

In addition, the main controller 90 controls the second current controller 140 to supply current to the NFC module 80 when the communication means used and supported by the card information selected by the user corresponds to the NFC module 80. It can be activated, and through this, payment can be made by card terminal and short-distance communication.

At this time, the main control unit 90 may determine that the fingerprint information is not normal when a predetermined number or more of feature points capable of identifying a fingerprint are not acquired from the received fingerprint image information of the user, and the contact signal is generated for a predetermined time. If there is no fingerprint information, it is determined that the fingerprint information is not normally acquired and re-input of the fingerprint information may be requested.

Further, the main control unit 90 may display, through the display unit 100, a fingerprint input start of the fingerprint recognition module 30, fingerprint image information detection completion, and a fingerprint input re-request when the fingerprint is not normally obtained. For example, information such as 'start' for fingerprint input start, 'normal' for fingerprint image information detection completion, and 're-request' for fingerprint input re-request may be displayed.

In addition, the main control unit 90 may display a result of comparing the user's fingerprint image information with pre-stored user authentication information through the display unit 100 . For example, information such as 'authentication success' when authentication is successful as a result of fingerprint recognition and 'authentication failure' when authentication fails may be displayed.

In addition, the main control unit 90 may limit the operation by determining that an attempt is made by a fraudulent user when the authentication procedure is not normally performed despite comparing the user's fingerprint image information and the pre-stored user authentication information a predetermined number of times or more. there is. For example, even if a power supply signal is input through the touch sensor 50, the first current control unit 130 is controlled so that the IC chip 60 and the display unit 100 are not activated or the second current control unit 140 It is possible to prevent the NFC module 80 from being activated by controlling.

In addition, the main controller 90 may control the IC chip 60, the display unit 100, and the NFC module 80 to be automatically deactivated when a predetermined time elapses after being activated. For example, activation times of the IC chip 60, the display unit 100, and the NFC module 80 may be checked, and when a predetermined activation time elapses, each of them may be deactivated.

As a result, electrical energy consumption of the capacitor 120 is minimized, and fingerprint recognition and display operations can be stably performed without an external power source.

Meanwhile, as shown in FIG. 5 , among the wearable device components according to another embodiment of the present invention, the fingerprint recognition module 30 includes a fingerprint sensor 31 that obtains fingerprint image information in response to a fingerprint input from a user and , a pressure sensor 32 for detecting pressure information according to a fingerprint input, and a comparison processing unit 33 for recognizing a user based on the fingerprint image information obtained from the fingerprint sensor 31 and the pressure information detected from the pressure sensor 32 ) and a storage unit 34 for storing a database including registered fingerprint images, thereby enhancing security.

The pressure sensor 32 may detect pressure generated during fingerprint input (all actions or manipulations of a user who inputs a fingerprint).

For example, the pressure sensor 32 may include an ultrasonic sensor. An image acquired using the ultrasonic sensor may exhibit characteristics in which, when a weak pressure is applied during fingerprint input, the intensity of pressure in the center region of the input fingerprint image is high and the intensity of pressure in the edge region is low. This is because ultrasound does not pass through the air layer well, and thus, if the object (finger) does not come into close contact with the ultrasound sensor, the contrast of the input fingerprint image is lowered.

The comparison processing unit 33 may detect pressure information according to the fingerprint input in response to the fingerprint input, and recognize the user based on the detected pressure information and the acquired fingerprint image information.

Further, the comparison processing unit 33 divides the entire input fingerprint image into small regions and measures variance for each region to be divided to calculate pressure information of partial fingerprint images from which the input fingerprint image is divided.

At this time, the display unit 100 may visualize information related to fingerprint recognition and provide it to the user.

For example, the display unit 100 may visualize an acquired input fingerprint image or visualize pressure information detected when a fingerprint is input.

The storage unit 34 may map and store the fingerprint image information received through the fingerprint sensor 31 and the registered fingerprint image information to corresponding input information.

The fingerprint recognition method of the fingerprint recognition module 30 configured as described above will be described below.

First, the fingerprint recognition module 30 may obtain an input fingerprint image in response to a fingerprint input from a user.

For example, the fingerprint recognition module 30 may capture an input fingerprint image corresponding to the user's fingerprint in response to a contact between the user's fingerprint and the fingerprint sensor 31 . The input fingerprint image may indicate a fingerprint image corresponding to a fingerprint input by the user.

Also, the fingerprint recognition module 30 may detect pressure information according to the fingerprint input in response to the fingerprint input. The pressure information may include information related to the strength of the pressure applied by the fingerprint input and the area to which the pressure is applied.

For example, the fingerprint recognition module 30 may determine the pressure level of the pressure information based on the amount of change in the touch area for a predetermined time from when a fingerprint input is first generated.

In addition, the fingerprint recognition module 30 may determine that the pressure information has two types of strength in response to a fingerprint input contact with the display unit 100 .

For example, one type of intensity may indicate that the pressure of the fingerprint input is 0, and the other type of intensity may indicate that the pressure of the fingerprint input is 1.

That is, the fingerprint recognition module 30 may generate pressure information by expressing the pressure level when the pressure sensor 32 is pressed as 1 and the pressure level when not pressed as 0.

Subsequently, the fingerprint recognition module 30 may recognize a user based on the detected pressure information and the obtained input fingerprint image.

For example, the fingerprint recognition module 30 may identify a pressure level from the detected pressure information and search for an registered fingerprint corresponding to an input fingerprint image obtained from registered fingerprint image information corresponding to the identified pressure level. there is.

In addition, the fingerprint recognition module 30 may identify a user as a registered user mapped to the searched registered fingerprint in response to a search for a registered fingerprint.

Here, the fingerprint recognition module 30 may search for a registered fingerprint based on the matching degree between the input fingerprint image and the registered fingerprint image, but is not limited thereto.

In addition, the fingerprint recognition module 30 may extract an input feature from an input fingerprint image, and may detect a registered fingerprint by calculating a matching degree with a registered feature corresponding to the registered fingerprint. In this case, the input feature may indicate a feature obtained by abstracting the input fingerprint image, and the registered feature may indicate a feature obtained by abstracting a registered fingerprint image corresponding to the registered fingerprint.

Further, the fingerprint recognition module 30 responds to a case in which the registered fingerprint corresponding to the input fingerprint image obtained from the registered fingerprint image corresponding to the pressure level of the detected pressure information is not searched, and the registered fingerprint image corresponding to the remaining pressure level. A registered fingerprint corresponding to an input fingerprint image obtained from may be searched.

In addition, the fingerprint recognition module 30 may identify a user as a registered user mapped to the searched registered fingerprint in response to a search for a registered fingerprint corresponding to the obtained input fingerprint image.

Furthermore, the fingerprint recognition module 30 may search for an enrolled fingerprint corresponding to an input fingerprint image obtained from an enrolled fingerprint image corresponding to the selected pressure level while sequentially selecting the target pressure level.

At this time, the target pressure level may indicate a pressure level to be searched in the database of the storage unit 34, but is not limited thereto. For example, the target pressure level is randomly selected and registered corresponding to the selected pressure level. A registered fingerprint corresponding to an input fingerprint image obtained from the fingerprint image may be searched.

Here, among the components related to the wearable device according to another embodiment of the present invention, components having the same or similar action and effect as those of the above-described embodiment use the same reference numerals, and repetitive and detailed descriptions thereof are omitted.

On the other hand, the present invention is not limited by the above-described embodiments (embodiment) and the accompanying drawings, and can be variously modified and applied in various ways not illustrated within the scope without departing from the technical spirit of the present invention, as well as each It is clear to those of ordinary skill in the art that the components can be widely applied by substitution of components and changes to other equivalent embodiments.

Therefore, contents related to the modification and application of the technical features of the present invention should be interpreted as being included within the technical spirit and scope of the present invention.

10: body 20: band
30: fingerprint recognition module 31: fingerprint sensor
32: pressure sensor 33: comparison processing unit
34: storage unit 40: capacitive sensor
50: touch sensor 60: IC chip
70: RFID module 80: NFC module
90: main control unit 100: display unit
110: self-powered unit 120: capacitor
130: first current control unit 140: second current control unit

Claims (5)

body;
a band connected to the body to be worn on a user's wrist;
a fingerprint recognition module provided on the body and acquiring fingerprint image information in response to a fingerprint input from a user;
a capacitive sensor provided around the fingerprint recognition module and generating a detection signal according to a fingerprint contact from a user;
a touch sensor that transfers the detection signal of the capacitive sensor to a main control unit;
an IC chip storing user information and a plurality of card information and having a card function and security module;
RFID module and NFC module for non-contact data communication;
The user authentication information is registered and stored, a detection signal of the capacitive sensor is received through the touch sensor, and whether or not the user's fingerprint image information input through the fingerprint recognition module is normally obtained and the user authentication information It is determined whether the user is the same as the user, and if it is a valid user, the IC chip is activated to classify the plurality of card information, and any one card information selected by the user among the plurality of card information is transmitted to the RFID module or the NFC. A main control unit that transmits through any one of the modules;
a display unit that visually displays the plurality of card information under the control of the main controller and receives an input operation for one card information selected from the plurality of card information;
A self-generating unit built into the body and converting its own vibration into electricity;
a capacitor for storing and supplying electric energy produced by the self-generating unit;
a first current control unit adjusting the current supplied from the capacitor to a predetermined first set value under the control of the main controller and supplying the current to the fingerprint recognition module, the IC chip, the main controller, and the display unit; and
a second current controller adjusting the current supplied from the capacitor to a predetermined second set value and supplying the current to the NFC module under the control of the main controller;
Including, wearable device.
According to claim 1,
The main control unit,
If any one card information selected by the user among the plurality of card information is a card that identifies a specific object (payment, authentication, etc.) using a radio frequency method, the Tag ID embedded in the IC chip In the case of a card that transmits (Metal ID) through the RFID module and identifies a specific object (payment, authentication, etc.) using an integrated circuit, an NFC payment terminal through the NFC module as an application (app) A wearable device that communicates with and controls to perform payment.
According to claim 1,
The self-powered unit,
A linear generator that produces electric energy through linear linear motion;
EMI filter to eliminate noise;
a rectifier that converts alternating current to direct current; and
a converter for converting the pulsating current input voltage obtained through the rectifier into a direct current output voltage;
Including, wearable device.
According to claim 3,
The linear generator,
a housing made of a non-magnetic material and formed in a hollow shape;
a stator coil fixed to the center of the housing;
Guides fixed to both sides of the stator coil; and
a permanent magnet installed so as to freely slide along the guide while enclosing a part of the lengthwise direction of the stator coil within the housing;
Including,
A wearable device that generates an induced current in the stator coil by changing a magnetic field by rectilinear reciprocating motion of the permanent magnet along the guide when it moves by itself.
According to claim 1,
The fingerprint recognition module,
a fingerprint sensor that obtains fingerprint image information in response to a fingerprint input from a user;
a pressure sensor detecting pressure information according to the fingerprint input; and
a comparison processing unit for recognizing a user based on the fingerprint image information obtained from the fingerprint sensor and the pressure information detected from the pressure sensor;
Further comprising a wearable device.

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