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WO2019203378A1 - Dispositif d'entrée d'empreinte digitale optique portable, système de commande d'accès comprenant ledit dispositif d'entrée d'empreinte digitale pour effectuer une authentification d'accès, et procédé de commande d'accès - Google Patents

Dispositif d'entrée d'empreinte digitale optique portable, système de commande d'accès comprenant ledit dispositif d'entrée d'empreinte digitale pour effectuer une authentification d'accès, et procédé de commande d'accès Download PDF

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Publication number
WO2019203378A1
WO2019203378A1 PCT/KR2018/004680 KR2018004680W WO2019203378A1 WO 2019203378 A1 WO2019203378 A1 WO 2019203378A1 KR 2018004680 W KR2018004680 W KR 2018004680W WO 2019203378 A1 WO2019203378 A1 WO 2019203378A1
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WO
WIPO (PCT)
Prior art keywords
fingerprint
authentication
mobile terminal
input device
access
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2018/004680
Other languages
English (en)
Korean (ko)
Inventor
백영현
신요식
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UNIONCOMMUNITY CO Ltd
Original Assignee
UNIONCOMMUNITY CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by UNIONCOMMUNITY CO Ltd filed Critical UNIONCOMMUNITY CO Ltd
Publication of WO2019203378A1 publication Critical patent/WO2019203378A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00857—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the data carrier can be programmed
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00857—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the data carrier can be programmed
    • G07C2009/00865—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the data carrier can be programmed remotely by wireless communication

Definitions

  • the present invention is connected to a user's mobile terminal, such as a smart phone or tablet, and a small portable optical fingerprint input device with enhanced security, and an access control system and control method for performing access authentication with the fingerprint input device It is about.
  • the access control system is a system installed at the door to authenticate the person, and includes an access authentication means and an electric door lock.
  • the door lock is inserted into the door to open and close the door.
  • a dead bolt is inserted into a groove installed in the door, or the door is opened or closed by pulling an iron plate installed on the door with an electromagnet.
  • the access authentication means used in the access control system used a keypad for inputting a password, a magnetic card, an RFID tag and a fingerprint input device.
  • a popular method of acquiring fingerprint information is an optical method using an optical refractor such as a prism.
  • an image of a light source 1 for irradiating fingerprint recognition light, a prism 3 to which a finger contacts, and a fingerprint image emitted from the prism 3 are formed.
  • the optical fingerprint input device includes a scattering device and an absorption device according to the arrangement of the prism 3 and the light source 1.
  • the light emitted from the light source 1 is imaged in the fingerprint pattern while being reflected, absorbed or scattered from the valleys and ridges of the fingerprint incident on the prism 3 and contacting the fingerprint contact surface 3a of the prism 3. It exits again through the exit surface 3b of ().
  • the fingerprint image emitted from the prism 3 is imaged on the image sensor 5 through the lens 4 to generate a digital fingerprint image.
  • optical fingerprint authentication uses an optical refractor, it is recognized that there is a limit in miniaturization. Since the prism 3 has a triangular cross section and changes the optical path to a certain angle or more, the fingerprint input device using the prism 3 has a larger volume than the semiconductor type or the like by any method. to be.
  • the external fingerprint recognition device is a fingerprint recognition device using a light and a camera built in a mobile terminal instead of an optical refractor and a lens, instead of a light and an image sensor. Since part of the configuration of the fingerprint recognition device uses a mobile terminal, the external fingerprint recognition device can be miniaturized.
  • the fingerprint input means applied to the access control system is built in the access controller. This is because the access controller is installed in the door, which is effective to control the access of several persons. If an individual carries a fingerprint input device for himself, another method may be necessary.
  • Fingerprint input device using mobile terminal equipped with camera and external optical device for fingerprint input thereof Korean Registered Patent Nos.1493332, 1479609
  • An object of the present invention is to provide a small portable optical fingerprint input device which is connected to a mobile terminal of a user such as a tablet and has enhanced security.
  • Another object of the present invention is to provide an access control system and an access control method for performing access authentication using a fingerprint input device and a mobile terminal.
  • An access control system for achieving the above object includes an access controller, a fingerprint input device and a mobile terminal.
  • the door controller controls the door lock to open the door when the door open command is received.
  • the fingerprint input device is a portable device which is connected to the mobile terminal by a cable and is supplied with power.
  • the fingerprint input device receives an authentication start command from the mobile terminal, the fingerprint input device is optically inputted to perform an entrance verification and notify the authentication result to the mobile terminal. do.
  • the mobile terminal transmits the authentication start command to the fingerprint input device according to the control of the accessor, and when the authentication success of the fingerprint input device is confirmed, the mobile terminal provides the door opening command to the access controller.
  • the fingerprint input device may include an optical unit including an optical refractor and a light source to generate and output a fingerprint image of a fingerprint in contact with the fingerprint contact surface of the optical refractor; And a circuit unit configured to receive a fingerprint image from the optical unit, generate a fingerprint image, and perform accessor authentication.
  • the circuit unit includes an image sensor, a memory, a communication interface, and a controller.
  • the image sensor receives a fingerprint image from the optical unit to generate a fingerprint image, and the fingerprint templates of a plurality of registered fingerprints are stored in the memory.
  • the communication interface communicates with the mobile terminal by wire and receives power from the mobile terminal.
  • the control unit operates the optical unit according to an authentication request for an accessor of the mobile terminal, performs authentication by comparing a fingerprint image generated by the image sensor with a template of an accessor registered in the memory, and authenticates the mobile terminal. Notify the results.
  • the optical unit includes a flat optical refractor, a lens, and a first mirror.
  • the optical refraction apparatus includes a fingerprint contact surface in which light of the light source is converted into a fingerprint image, a light incident surface parallel to the fingerprint contact surface, and a light incident surface in which light emitted from the light source is incident and totally reflects the fingerprint image converted in the fingerprint contact surface, and the fingerprint contact surface.
  • An emission surface disposed between the light incidence surfaces and the fingerprint image on which the fingerprint image is output, and a back surface inclined to face the emission surface and form an internal angle with the light incidence surface.
  • the inside angle is preferably set to an angle that allows the back surface to totally reflect the fingerprint image totally reflected from the light incident surface toward the exit surface.
  • a lens is provided between the exit surface and the image sensor to form the fingerprint image with the image sensor, and the first mirror is disposed between the lens and the image sensor so that the image sensor can be disposed in parallel with the fingerprint contact surface.
  • the fingerprint image passing through the lens is reflected to the image sensor.
  • the plurality of light sources using a blue, green or red LED that the color is exposed through the fingerprint contact surface, when the power is supplied through the communication interface to start the operation, the mobile terminal
  • an authentication start command is received from a user and a fingerprint is input, and authentication is performed according to the authentication start command and the authentication success or authentication failure is determined
  • the light is turned on and off in a specific pattern at least one time point selected. It can be displayed to the person.
  • the door opening instruction provided by the mobile terminal to the access controller includes a first identification code for identifying the person and a second identification code for identifying the access controller.
  • the mobile terminal may receive access information for confirming the first identification code and information for confirming the second identification code when receiving a control command from the accessor.
  • the present invention also extends to the access control method of the access control system.
  • Access control method of the present invention the mobile terminal is connected to the fingerprint input device and the cable to supply power; Transmitting, by the mobile terminal, an authentication start command to the fingerprint input device according to an accessor's control; Receiving, by the fingerprint input apparatus, optically receiving an entrance fingerprint according to the authentication start command and notifying an authentication result to the mobile terminal; Providing, by the mobile terminal, a door opening command to the access controller when the authentication of the fingerprint input device is confirmed to be successful; And controlling the door lock to open the door according to the door opening command.
  • the present invention extends to the portable fingerprint input device itself.
  • the portable fingerprint input device may perform personal fingerprint authentication under the control of the mobile terminal.
  • the access control of the present invention can be used in various fields, including the field of fintech.
  • Fingerprint input device of the present invention is easy to carry the user by minimizing the overall size and thickness by using a flat-shaped optical refractor, fingerprint registration, fingerprint authentication only when receiving a predetermined control command connected to a mobile terminal such as a user's tablet Security is enhanced by performing
  • the fingerprint input device of the present invention has a smaller overall size, the fingerprint input device can obtain a fingerprint image having a size sufficient to secure a feature point by maximizing the fingerprint input surface.
  • the fingerprint input device of the present invention is reduced in size, all the components necessary for optical fingerprint authentication are built in such that information or images related to the input fingerprint are not leaked to the outside during the fingerprint registration or authentication process.
  • the fingerprint template is encrypted and stored in internal memory for enhanced security.
  • the access control apparatus of the present invention does not need to include a user interface, such as a keypad, to control the door lock, and may be embedded in the door together with the door lock as necessary.
  • a user interface such as a keypad
  • the access control system of the present invention If the user has already provided the mobile terminal and the door lock, it is possible to build the access control system of the present invention by installing only the fingerprint input device and the access controller of the present invention. Therefore, the user can build the system very economically.
  • the fingerprint input device does not have to be limited to the dedicated configuration of the access control system of the present invention.
  • the fingerprint input device of the present invention can be used as a general personal authentication device.
  • FIG. 1 is a conceptual diagram provided to explain a conventional optical fingerprint input method
  • FIG. 2 is a block diagram of an access control system of the present invention
  • FIG. 3 is a block diagram of an access controller and a mobile terminal of FIG.
  • FIG. 4 is a perspective view of a fingerprint input device of the present invention.
  • FIG. 5 is a block diagram of a fingerprint input device of the present invention.
  • FIG. 6 is a cross-sectional view provided for explaining a fingerprint image generation process of the fingerprint input device of the present invention
  • FIG. 8 is a block diagram of an access control system according to another embodiment of the present invention.
  • the access control system 200 includes an access controller 210 for controlling the door lock 10, a mobile terminal 230, and a fingerprint input device 250. And, by controlling the door lock 10 installed in the door 11 to open and close the door (11).
  • the access controller 210 and the door lock 10 open the door according to the access authentication result.
  • a door opening and closing is performed by the door lock 10
  • b accessor authentication is performed by the mobile terminal 230 and the fingerprint input device 250.
  • the access controller 210 has a structure for controlling the door lock 10 according to the 'door access command' or 'authentication code' provided by the mobile terminal 230. According to an embodiment, the door lock 10 and the access controller 210 may be combined into one device.
  • the access controller 210 includes a second communication interface 211 and a door lock driver 213 and is connected to the door lock 10 by wire or integrally formed with the door lock 10.
  • the door controller 10 controls the door lock 10 to open the door 11.
  • the access controller 210 is not required to have a separate access authentication means, the access controller 210 of Figure 3 does not have a user interface such as a keypad (keypad) or a display (not shown) . However, the access controller 210 may be provided with a separate access authentication means, a user interface for another purpose.
  • the 2a communication interface 211 receives a 'door access command' from the mobile terminal 230.
  • the door opening command has the same meaning as the accessor authentication success.
  • the second communication interface 211 of the access controller 210 may correspond to a wireless LAN, a Bluetooth, a mobile communication network, a Zigbee, or the like.
  • the door lock driving unit 213 When the door lock driving unit 213 receives the 'open command' from the mobile terminal 230 through the second communication interface 211, it is determined that the accessor authentication is successful, so that the door 11 is opened by controlling the door lock 10. .
  • the door lock driving unit 213 controls the door lock 10 by sending an electric signal to the door lock 10 in a contact control form.
  • the door lock 10 installed in the door 11 opens the door 11 when receiving the contact signal from the access controller 210.
  • the door lock 10 controlled by the access controller 210 is an electric door lock, for example, a motor (not shown) is built in to drive a dead bolt (not shown), or an electromagnet is built in to open and close the door 11 by magnetic force. It works in such a way.
  • the exchange of a predetermined and encrypted registration key may be preceded by the purpose of mutually recognizing the input device 250.
  • the information exchanged by the access controller 210 and the mobile terminal 230 may be encrypted using a separate encryption code, including an 'open command'.
  • the mobile terminal 230 is a portable terminal having a communication function such as a smart phone, a personal digital assistant (PDA), a tablet computer (or a tablet), and various functions (telephone function, Various functions for performing a camera function, location recognition, etc.).
  • a communication function such as a smart phone, a personal digital assistant (PDA), a tablet computer (or a tablet), and various functions (telephone function, Various functions for performing a camera function, location recognition, etc.).
  • PDA personal digital assistant
  • tablet computer or a tablet
  • various functions telephone function, Various functions for performing a camera function, location recognition, etc.
  • the mobile terminal 230 provides a user interface for the fingerprint input device 250 and serves as a relay for connecting to the access controller 210 or an external server as necessary. .
  • the fingerprint input device 250 may be further miniaturized, and the fingerprint input device 250 may be further installed on the mobile terminal 230 by additionally installing software for other purposes. Can be used as Therefore, the user can use the fingerprint input device 250 as a general-purpose personal authentication device rather than a dedicated configuration of the access control system 200.
  • the mobile terminal 230 may include a display unit 231, an input unit 233, a first communication interface 235, a first communication interface 237, and a second communication interface 237.
  • Terminal control unit 239 is included.
  • the display unit 231 is a device for displaying various types of information such as LCD, OLED, etc. so as to be visually recognized
  • the input unit 233 is a device for receiving a user's control command.
  • the display unit 231 and the input unit 233 are preferably provided in the form of one touch screen.
  • the first 1a communication interface 235 is a communication interface connected to the seconda communication interface 211 of the access controller 210, and may be a wireless LAN, a Bluetooth, a mobile communication network, or a Zigbee according to a communication method. Corresponds to a wireless interface.
  • the first b communication interface 237 is a communication interface connected to the third a communication interface 437 of the fingerprint input device 250.
  • the 1b communication interface 237 preferably uses a wired interface such as Universal Serial Bus (USB) or RS-232, but is not limited thereto.
  • the terminal controller 239 controls the overall operation of the mobile terminal 230, and specifically includes an access controller 239a to perform the access authentication of the present invention.
  • the access control unit 239a controls accessor registration and fingerprint registration for accessor registration, and performs access control based on accessor registration.
  • the access control unit 239a When the access control unit 239a receives a control command for opening the door from the user (ie, the accessor) through the input unit 233, the access control unit 239a transmits a 'authentication start command' to the fingerprint input device 250, and the fingerprint input device 250.
  • the accessor authentication success is received from the access controller 210 transmits an 'access door opening command'.
  • the access door opening command may include a first identification code for identifying an accessor and a second identification code for identifying the access controller 210. In this case, since the access controller 210 is registered to access the accessor, the first identification code and the second identification code are associated with each other.
  • the fingerprint input device 250 of the present invention obtains a fingerprint image from a user fingerprint in contact with the fingerprint contact surface 411a, registers it as a template, and then registers a fingerprint for the registered user when personal authentication is required. Perform authentication.
  • the fingerprint input device 250 may be connected to the mobile terminal 230, and performs fingerprint registration, fingerprint authentication (participant authentication), etc. under the control of the mobile terminal 230.
  • the fingerprint input device 250 of the present invention includes an optical unit 410, a circuit unit 430, and a housing 450 to accommodate them.
  • the housing 450 is provided with a fingerprint contact window 451 on a top surface for a user to input a fingerprint, and the connection terminal 437a of the third communication interface 437 described below is exposed. It is flat shape that is slightly bigger than finger.
  • the size of the fingerprint contact window 451 is smaller than the fingerprint contact surface 411a of the optical refraction machine 411 described below, the area of the fingerprint input at one time by the fingerprint contact window 451 is determined. It should be approximately 15 x 20mm in size for full access verification.
  • the optical unit 410 includes an optical refractor 411, a lens 413, and a first mirror 415, and a user who contacts the fingerprint contact surface 411a of the optical refractor 411.
  • a fingerprint image is made by irradiating light toward a fingerprint.
  • the fingerprint image generated by the optical unit 410 is inputted to the image sensor 433 of the circuit unit 430 to be imaged.
  • the optical refractor 411 may be any kind of optical element including a fingerprint contact surface to which the finger F contacts, a light entrance surface to which light emitted from the light source 431 is incident, and an exit surface to which the fingerprint image is finally emitted. Do. However, when the optical refractor 411 is implemented in a thin flat plate shape, the fingerprint input device 250 may be sufficiently thin in a plate shape.
  • the size of the fingerprint contact surface of the optical refractor 411 may correspond to or be larger than the fingerprint contact window 451. Also, for sufficient accessor authentication, the size of the fingerprint contact surface is preferably about 15 x 20 mm or more.
  • the optical refractor 411 of FIG. 6 is an example of the optical refractor of the present invention.
  • the fingerprint contact surface 411a is disposed on the 'upper surface'
  • the emission surface 411b is disposed on the 'front surface' perpendicular to the fingerprint contact surface 411a
  • the light incident surface is disposed on the lower surface of the optical refractor 411.
  • It is a board
  • the arrangement of the interior a is to totally reflect the path of the fingerprint image totally reflected in the optical refractor 411 to the exit surface 411b and reduce trapezoidal distortion as shown in FIG. 6.
  • the path of the fingerprint image in the photorefractor 411 will be described again with reference to the light source 431 below.
  • the lens 413 forms a fingerprint image from the exit surface of the optical refractor 411 on the image sensor 433.
  • the first mirror 415 is disposed on the optical path between the lens 413 and the image sensor 433 to change the path of the fingerprint image emitted from the optical refractor 411 by a constant angle (eg, 90 °).
  • the 433 can be arranged in parallel with the optical refraction machine 411, so that the fingerprint input device 250 can be sufficiently flat and thin.
  • the lens 413 and the first mirror 415 form an optical path between the emission surface 411b of the optical refractor 411 and the image sensor 433, thereby providing a fingerprint image emitted from the optical refractor 411. Light) is incident on the image sensor 433.
  • FIG. 6 shows the lens 413 disposed in front of the first mirror 415, this arrangement is, of course, illustrative, and for example, additional mirrors may be placed before or after the lens 413. A plurality of lenses 413 may be used as necessary.
  • the lens 413 is a concave-convex lens having an incident surface as a concave lens and an exit surface as a convex lens. Correct trapezoidal distortion.
  • the fingerprint image has a path length. Due to the difference in trapezoidal distortion.
  • the rear surface 411d of the optical refractor 411 facing the exit surface 411b is formed to be inclined at an internal angle a that is not perpendicular to the light incident surface 411c, thereby at different points (). Reduces the difference in path lengths of fingerprint images. Additionally.
  • a concave-convex lens 413 corrects trapezoidal distortion of the fingerprint image.
  • the circuit unit 430 includes a light source 431, an image sensor 433, a memory 435, a third a communication interface 437, and an authentication controller 439. Since the fingerprint input device 250 receives power from the mobile terminal 230, the fingerprint input device 250 does not need to include a battery or a power supply.
  • the circuit unit 430 is disposed in parallel with the light incidence surface 411c under the light incidence surface 411c of the plate-shaped optical refractor 411, thereby miniaturizing and optimizing the size of the fingerprint input device 250.
  • the light source 431 irradiates light for generating an optical fingerprint image toward the fingerprint contact surface 411a of the optical refractor 411. Since the light source 431 is disposed to face the light incident surface 411c of the light refractor 411, the light emitted from the light source 431 is incident directly on the light incident surface 411c of the light refractor 411. do.
  • the thickness of the optical refractor 411 is thin and the light source 431 is disposed close to the bottom of the light incident surface 411c. Despite this, the area that the light source 431 can illuminate is limited. Therefore, the present invention arranges the plurality of light sources 431 at regular intervals, thereby illuminating the fingerprint contact surface 411a uniformly.
  • the fingerprint input device 250 of FIG. 6 By arranging the optical refractor 411 and the light source 431, the fingerprint input device 250 of FIG. 6 generates a fingerprint image in a transmission type (ie, scattering type).
  • a transmission type ie, scattering type
  • FIG. 6 light emitted from the light source 431 is incident perpendicularly to the light incident surface 411c. Since light passing through the light incident surface 411c is incident on the fingerprint contact surface 411a of the photorefractor 411 at an angle smaller than the critical angle, the fingerprint image is scattered at the ridge portion of the fingerprint in contact with the fingerprint contact surface 411a. It is mainly formed by the light, so the valleys are dark and the ridges are bright, resulting in a good contrast.
  • the light arriving at the fingerprint contact surface 411a is scattered or reflected from the fingerprint contact surface 411a to become a fingerprint image, and is totally reflected on the light incident surface 411c and the back surface 411d of the optical refraction 411.
  • the light incident surface 411c and the back surface 411d should form the inside angle a so that the fingerprint image can be sufficiently totally reflected toward the exit surface 411b.
  • the fingerprint image emitted from the exit surface 411b is collected through the lens 413, reflected by the first mirror 415, and incident on the image sensor 433.
  • the image sensor 433 receives a fingerprint image, generates a fingerprint image, provides the fingerprint image to the authentication controller 439, and stores the fingerprint image in the memory 435. Since the image sensor 433 is disposed to be rotated by 90 ° with respect to the exit surface 411b, a first mirror 415 is required between the exit surface 411b and the image sensor 433. Through the fingerprint input device 250 can be miniaturized.
  • the fingerprint input device 250 of FIG. 5 does not have a separate user interface to display an operation state to the user. However, in order to display a basic operating state, the fingerprint input device 250 may display an operating state using a blue, red, or green LED as the light source 431. When the light source 431 is turned on for the fingerprint input, the color is reflected through the optical refractor 411 and the fingerprint contact window 451 so that the user can know that the fingerprint input device 250 is in an operating state. Further, when the power is supplied through the 3a communication interface 437 to start an operation, when the fingerprint registration command or the authentication start command is received from the mobile terminal 230 and the fingerprint is input, the fingerprint registration command is received.
  • the authentication control unit 439 When the fingerprint registration is completed, and at least one time point selected from among when the authentication is successful or the authentication failure is performed according to the 'authentication start command', the authentication control unit 439 has a blue, red or green color. By turning on and off the light source 431 in a predetermined specific pattern, the operation state can be displayed without providing a separate display unit.
  • the fingerprint input device 250 may include at least one LED for displaying the basic operation.
  • the memory 435 stores a fingerprint image generated by the image sensor 433, a template (feature point data) of the fingerprint registered through the fingerprint registration process, authentication history information, and the like.
  • the fingerprint input device 250 of the present invention is used.
  • Various information of is stored.
  • the registered fingerprint template and / or fingerprint image stored in the memory 435 are stored to be classified and searched by a certain serial number or the like.
  • Data stored in the memory 435 is preferably encrypted by the authentication control unit 439.
  • the third a communication interface 437 is connected to the first b communication interface 237 of the mobile terminal 230, and receives not only data transmission but also operation power.
  • the UASB or the RS-232 or the like is preferably the 3a communication interface 437 or the like as the 3a communication interface 437.
  • the third a communication interface 437 includes a connection terminal 437a exposed at one side of the housing 450.
  • the authentication controller 439 controls the overall operation of the fingerprint input device 250 of the present invention.
  • the authentication controller 439 first performs an accessor fingerprint registration and an accessor authentication process under the control of the mobile terminal 230, and provides the result to the mobile terminal 230.
  • the authentication control unit 439 and the mobile terminal 230 will be described below. Although described as if there is a direct communication between, it should be understood that it is transmitted and received by the 3a communication interface 437 and the 1b communication interface 237.
  • Enrollment fingerprint registration is performed during the enrollment process of the mobile terminal 230, and is initiated by the request of the mobile terminal 230.
  • the authentication controller 439 receives the fingerprint registration command from the access control unit 239a of the mobile terminal 230, the authentication controller 439 turns on the light source 431 to start the fingerprint registration process.
  • the fingerprint registration command of the mobile terminal 230 includes a 'first identification code' assigned to the person to be registered.
  • the image sensor 433 converts the fingerprint image into a digital fingerprint image.
  • the authentication control unit 439 checks the quality of the fingerprint image and determines whether the fingerprint image is a fake fingerprint. If there is no problem with the quality check and is not a fake fingerprint, the authentication control unit 439 extracts the feature points from the fingerprint image to generate a fingerprint template, and then maps the 'first identification code' included in the fingerprint registration command to the memory 435. Save it.
  • the authentication control unit 439 notifies the mobile terminal 230 of the fingerprint registration completion according to the fingerprint registration command together with the storage of the fingerprint template, thereby completing fingerprint registration for the accessor initiated by the fingerprint registration command. In the process of storing in the memory 435, the authentication control unit 439 may encrypt and store the fingerprint template with a certain encryption code.
  • the authentication controller 439 may provide the error information to the mobile terminal 230 or display it to the accessor, and both provide the error information and display the accessor. It can also be done. In the fingerprint registration process, it is not necessary to check the quality of 1 or judge the fake fingerprint of 2. It can be applied selectively.
  • the access authentication method of the present invention will be described as a whole. However, it will be described on the premise that the accessor is a complete accessor registration so that the accessor can open the door (11).
  • the accessor registration is registered with the first identification code (ie, the accessor information) mapped to the second identification code on the mobile terminal 230 and the accessor fingerprint mapped to the first identification code on the fingerprint input device 250.
  • the access control unit 239a When the access control unit 239a receives a 'control command for opening the door' from the accessor through the input unit 233 (S701), the accessor's identification code (first identification code) and the identification code of the access controller 210 (first 2 to identify the identification code) and receives the information on the accessor and the information on the access controller 210 to access the access (S703).
  • the access control unit 239a sees that the accessor is a registered accessor to the fingerprint input device 250 'authentication start command' Send a request to authenticate the accessor.
  • the authentication start command includes the first identification code of the accessor. If the fingerprint input device 250 is not connected, the access control unit 239a may display a guide message requesting the fingerprint input device 250 to be connected to the user through the display unit 231 (S705).
  • the authentication control unit 439 of the fingerprint input device 250 receives the 'authentication start command', the light source 431 is turned on to start the accessor authentication process.
  • the light emitted from the light source 431 is changed into a fingerprint image on the fingerprint contact surface 411a, and the image sensor 433 is an exit surface 411b.
  • the fingerprint image generated by the image sensor 433 in the authentication process is referred to as a 'fingerprint fingerprint image' (S707).
  • the authentication controller 439 checks the quality of the fingerprint image for authentication and determines whether the fingerprint image for authentication is a fake fingerprint. If there is no problem with the quality check and is not a fake fingerprint, the authentication control unit 439 extracts the feature point from the fingerprint image for authentication and b) a fingerprint template mapped to the first identification code included in the authentication start command (ie, the fingerprint template of the accessor). ) Is extracted from the memory 435 and is compared (S709).
  • the authentication control unit 439 notifies the mobile terminal 230 of authentication success, thereby terminating the authentication process for the accessor initiated by the authentication start command (S711). .
  • the access control unit 239a of the mobile terminal 230 When the access control unit 239a of the mobile terminal 230 receives the authentication success from the fingerprint input device 250, the access control unit 239a transmits an access door opening command of a preset type to the access controller 210.
  • the access controller 210 controls the door lock 10 to open the door 11 when receiving the 'access door opening command' from the mobile terminal 230 (S713).
  • the authentication controller 439 notifies the mobile terminal 230 of the authentication failure, thereby authenticating the access person initiated by the authentication start command. End the process.
  • the authentication controller 439 may provide the error information to the mobile terminal 230 or display it through the display unit, and provide the error information and display through the display unit. You can also do it all. In the fingerprint authentication process, it is not necessary to check the quality of 1 or judge the fake fingerprint of 2. It can be applied selectively.
  • the access control of the present invention is performed.
  • the authentication control unit 439 of the fingerprint input device 250 notifies the mobile terminal 230 of the authentication success or authentication failure, the fingerprint template generated for fingerprint registration, the fingerprint template for authentication or the like.
  • the registered fingerprint template is not provided to the mobile terminal 230. Therefore, the fingerprint template of the user stored in the fingerprint input device 250 is basically not leaked to the outside.
  • the fingerprint template stored in the memory 435 is encrypted, even if the fingerprint template stored in the memory 435 is leaked in the process of loss or the like, the contents cannot be confirmed or modified.
  • the authentication controller 439 simply notifies the mobile terminal 230 of the authentication success.
  • the authentication controller 439 may transmit a predetermined 'authentication code' in response to the authentication success.
  • the mobile terminal 230 receiving the 'authentication code' transmits the authentication code to the access controller 210 instead of transmitting the 'door access command', and the door lock driver 213 of the access controller 210 receives the authentication code.
  • the door 11 is opened.
  • the authentication code is registered only in the access controller 210 and the fingerprint input device 250 and is different from the door opening command managed by the mobile terminal 230.
  • the mobile terminal 230 serves as a relay that simply transfers the authentication code received from the fingerprint input device 250 to the access controller 210, and does not consider or determine whether the accessor authentication is successful or failed.
  • the access control system 800 of the present invention may further include a software distribution server 810.
  • the software distribution server 810 includes a computer-readable storage medium 811 and stores software for the access control unit 239a of the mobile terminal 230.
  • Mobile terminal 230 may connect to software distribution server 810 via network 40.
  • the terminal control unit 239 of the mobile terminal 230 may be interpreted as a configuration specially installed for the present invention, but generally performs the main or basic functions (eg, telephone, communication, etc.) of the mobile terminal 230. It may also be a configuration installed to do so.
  • the terminal controller 239 is configured to perform the basic functions of the mobile terminal 230 as described above, the terminal controller 239 includes a processor chip, which is hardware basically possessed by the mobile terminal 230, and It may be functionally directed to a configuration implemented by an operating system (OS) operating based on the chip.
  • OS operating system
  • the conventional terminal to which the present invention is not applied may also include a terminal controller 239.
  • the access control unit 239a may be installed in an existing terminal for implementing the present invention as software or an application running on the operating system program. In other words, when the access control unit 239a of the present invention is installed in the existing portable terminal, the mobile terminal 230 of the present invention becomes.
  • Software distribution server 810 stores access control software for access control unit 239a.
  • the user may access the software distribution server 810 with the mobile terminal 230 to download the access control unit software (or application) and install the access control unit 239a.
  • the mobile terminal 230 can be used in various fields that require personal authentication using the fingerprint input device 250.
  • the necessary software can be downloaded and installed through the software distribution server 810.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Telephone Function (AREA)
  • Image Input (AREA)
  • Collating Specific Patterns (AREA)

Abstract

L'invention concerne un dispositif d'entrée d'empreinte digitale optique portable, un système de commande d'accès comprenant le dispositif d'entrée d'empreinte digitale pour effectuer une authentification d'accès, et un procédé de commande d'accès. Le système de commande d'accès de la présente invention comprend un dispositif d'entrée d'empreinte digitale qui peut être connecté à un terminal mobile, et un contrôleur d'accès pour commander un verrou de porte ne comprenant pas de moyen d'entrée d'empreinte digitale. Bien que le dispositif d'entrée d'empreinte digitale ait une taille réduite au minimum en utilisant un réfracteur optique en forme de plaque plate, le dispositif d'entrée d'empreinte digitale comprend toutes les configurations requises pour une authentification d'empreinte digitale optique et stocke un modèle d'une empreinte digitale enregistrée dans une mémoire interne, de façon à améliorer la sécurité des informations personnelles.
PCT/KR2018/004680 2018-04-20 2018-04-23 Dispositif d'entrée d'empreinte digitale optique portable, système de commande d'accès comprenant ledit dispositif d'entrée d'empreinte digitale pour effectuer une authentification d'accès, et procédé de commande d'accès Ceased WO2019203378A1 (fr)

Applications Claiming Priority (2)

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KR1020180046272A KR102087440B1 (ko) 2018-04-20 2018-04-20 휴대용 광학식 지문입력장치 및 그 지문입력장치를 구비하여 출입인증을 수행하는 출입제어시스템 및 제어방법
KR10-2018-0046272 2018-04-20

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WO2019203378A1 true WO2019203378A1 (fr) 2019-10-24

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KR102250548B1 (ko) * 2020-10-08 2021-05-13 주식회사 올아이티탑 양자난수와 생체정보를 연계한 탈착식 분리형 usb를 이용한 금융거래방법
WO2025121853A1 (fr) * 2023-12-08 2025-06-12 삼성전자 주식회사 Système d'authentification biométrique et son procédé de fonctionnement

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JPH06195450A (ja) * 1992-12-25 1994-07-15 Fujitsu Ltd 指紋像入力装置
KR0155034B1 (ko) * 1994-02-04 1998-11-16 세끼자와 다다시 요철면 판독장치
KR20040039856A (ko) * 2002-11-05 2004-05-12 주식회사 코렌 생체정보인식장치
US20140270418A1 (en) * 2013-03-18 2014-09-18 Sunasic Technologies, Inc. Portable device having fingerprint recognition function
KR20160006126A (ko) * 2015-08-31 2016-01-18 최연석 휴대용 인증 장치를 사용한 보안 장치

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KR101771481B1 (ko) * 2015-10-22 2017-08-25 김승훈 바이오 장치에 등록 저장된 지문을 안전하게 사용하는 방법

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JPH06195450A (ja) * 1992-12-25 1994-07-15 Fujitsu Ltd 指紋像入力装置
KR0155034B1 (ko) * 1994-02-04 1998-11-16 세끼자와 다다시 요철면 판독장치
KR20040039856A (ko) * 2002-11-05 2004-05-12 주식회사 코렌 생체정보인식장치
US20140270418A1 (en) * 2013-03-18 2014-09-18 Sunasic Technologies, Inc. Portable device having fingerprint recognition function
KR20160006126A (ko) * 2015-08-31 2016-01-18 최연석 휴대용 인증 장치를 사용한 보안 장치

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