KR20230082909A - Door lock and operating method thereof - Google Patents

Abstract

The present invention relates to a door lock to be easily used by the visually impaired or the elderly and an operation method thereof. According to one embodiment of the present invention, the door lock comprises: a handle member including a first handle provided on the outer wall of a door and a second handle provided on the inner wall of the door, and configured to open and close the door by rotation of the first handle or the second handle; a locking device operated in an open mode of operating a latch module by the rotation of the first handle or the second handle to open the door, or in a closed mode of stopping the operation of the latch module to keep the door closed; a first fingerprint sensor provided on a first surface of the first handle to detect a fingerprint; a keypad including a plurality of buttons provided to protrude outwardly from a second surface of the first handle and a plurality of switches switched on by pressure applied to one or more of the plurality of buttons to generate a button input signal; and a processor determining an operation mode of the locking device on the basis of a primary authentication result of a user through comparison between a fingerprint and a reference fingerprint and a secondary authentication result of the user through comparison between the button input signal and a reference button input signal.

Description

Door lock and its driving method {DOOR LOCK AND OPERATING METHOD THEREOF}

The present invention relates to a door lock and a driving method thereof.

In the case of mechanical door locks, because of the inconvenience of having to carry a key, recently, most of the electrically operated door locks that can be opened by inputting a password on a touch panel have been widely used.

In the case of such electrically operated door locks, there is a problem in that it is difficult for visually impaired people to freely enter and exit due to difficulties in accurately touching the password. In addition, there is a problem that fingerprints remain on the touch panel or passwords are leaked through CCTV, which can be exposed to the risk of crime.

The foregoing background art is technical information that the inventor possessed for derivation of the present invention or acquired during the derivation process of the present invention, and cannot necessarily be said to be known art disclosed to the general public prior to filing the present invention.

Domestic Patent Publication No. 10-2021-0100334 (2021.08.17)

One object of the present invention is to provide a door lock that can be easily used by the visually impaired or the elderly.

One object of the present invention is to provide a door lock that can increase security without leaving fingerprints and with less risk of number leakage.

One object of the present invention is to provide a door lock that makes it easy to hold a handle ergonomically.

One object of the present invention is to provide a door lock capable of fingerprint recognition and password input on a handle.

The problem to be solved by the present invention is not limited to the above-mentioned problems, and other problems and advantages of the present invention that are not mentioned can be understood by the following description and more clearly understood by the embodiments of the present invention. It will be. In addition, it will be appreciated that the problems and advantages to be solved by the present invention can be realized by the means and combinations indicated in the claims.

A door lock according to an embodiment of the present invention includes a first handle provided on an outer wall of a door and a second handle provided on an inner wall of the door, and the door is opened by a rotation operation of any one of the first handle and the second handle. A handle member formed to open and close the door, and operating in an open mode in which the door is opened by operating the latch module by rotational manipulation of any one of the first handle and the second handle, or by stopping the operation of the latch module to keep the door closed. A locking device operating in a closed mode, a first fingerprint sensor provided on the first surface of the first handle to detect a fingerprint, a plurality of buttons provided to protrude outward from the second surface of the first handle, A keypad including a plurality of switches that are switched on by pressure applied to one or more buttons among a plurality of buttons to generate a button input signal, a result of performing primary authentication for a user through comparison of a fingerprint and a reference fingerprint, and a button It may include a processor for determining an operation mode of the locking device based on a result of performing secondary authentication for the user through comparison of the input signal and the reference button input signal.

A method of driving a door lock according to an embodiment of the present invention is a method of driving a door lock performed by a processor included in the door lock, and includes a first fingerprint sensor provided on a first surface of a first handle provided on an outer wall of a door. Receiving a result of detecting the fingerprint through a step, a plurality of buttons provided to protrude outward from the second surface of the first handle, and a button input signal that is switched on by pressure applied to one or more buttons among the plurality of buttons Receiving a button input signal from a keypad including a plurality of switches that generate a first authentication result for a user through comparison between a fingerprint and a reference fingerprint, and comparing the button input signal and the reference button input signal Based on the result of performing the secondary authentication for the user, it operates in an open mode in which the door is opened by operating the latch module by rotating the first handle, or in a closed mode in which the operation of the latch module is stopped to keep the door closed. It may include determining the operation mode of the locking device operating as .

In addition to this, another method for implementing the present invention, another system, and a computer readable recording medium storing a computer program for executing the method may be further provided.

Other aspects, features and advantages other than those described above will become apparent from the following drawings, claims and detailed description of the invention.

According to the present invention, by providing a door lock capable of fingerprint recognition and password input on the handle, the blind or the elderly can easily use it.

In addition, by providing a door lock capable of fingerprint recognition and password input on the handle, security can be increased because fingerprints are not left and the risk of number leakage is reduced.

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

1 is a perspective view of a door lock according to an embodiment.
2 is an exploded perspective view around the first handle included in the door lock according to the present embodiment.
3 is a cross-sectional view around the first handle included in the door lock according to the present embodiment.
4 is a rear perspective view of the periphery of the first handle included in the door lock according to the present embodiment.
5 is an exemplary view illustrating an operation situation of a door lock according to the present embodiment.
6 is a block diagram shown to schematically explain the door lock according to the present embodiment.
7 is a flowchart illustrating a door lock driving method according to the present embodiment.

Advantages and features of the present invention, and methods for achieving them will become clear with reference to the detailed description of embodiments in conjunction with the accompanying drawings. However, it should be understood that the present invention is not limited to the embodiments presented below, but may be implemented in a variety of different forms, and includes all conversions, equivalents, and substitutes included in the spirit and scope of the present invention. . The embodiments presented below are provided to complete the disclosure of the present invention and to fully inform those skilled in the art of the scope of the invention to which the present invention belongs. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded. Terms such as first and second may be used to describe various components, but components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another.

In addition, in this application, “unit” may be a hardware component such as a processor or a circuit, and/or a software component executed by a hardware component such as a processor.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same or corresponding components are assigned the same reference numerals, and overlapping descriptions thereof are omitted. I'm going to do it.

1 is a perspective view of a door lock according to this embodiment, FIG. 2 is an exploded perspective view around a first handle included in a door lock according to this embodiment, and FIG. 3 is a perspective view around a first handle included in a door lock according to this embodiment. 4 is a rear perspective view around the first handle included in the door lock according to the present embodiment.

Referring to FIGS. 1 to 4 , door locks 200 may be provided on outer and inner walls of the door 100 . In this embodiment, the door lock 200 includes a handle member 210, a locking device 230 including a cover portion 220 and a latch module 231, a fingerprint detection unit 240, a keypad 250, a light emitting unit ( 260) and an identification mark detection unit 270.

The handle member 210 may include a first handle 211 provided on an outer wall of the door 100 and a second handle 212 provided on an inner wall of the door 100 . In this embodiment, the door 100 may be opened and closed by rotating any one of the first handle 211 and the second handle 212 .

In particular, the door 100 can be always opened and closed by rotating the second handle 212 , but in the case of the first handle 211 , the door 100 can only be opened when predetermined conditions are satisfied. Here, the preset condition may include a first condition that the input fingerprint must be the same as a pre-stored reference fingerprint and a second condition that the input password must be the same as the pre-stored reference password. The door 100 can be opened only when both the first condition and the second condition are satisfied. However, when even one of the first condition and the second condition is not satisfied, the door 100 cannot be opened and can remain closed.

The cover part 220 may be provided between the door 100 and the handle member 210 and may include a first cover part 221 and a second cover part 222 . The first cover part 221 may be provided between the outer wall of the door 100 and the first handle 211, and the second cover part 222 may be provided between the inner wall of the door 100 and the second handle 212. can be provided in Inside the first cover part 221, a first transmission unit (not shown) that rotates together by the rotational operation of the first handle 211 is provided, and inside the second cover part 222, the second handle 212 A second transmission unit (not shown) that rotates together by the rotational operation of may be provided.

The locking device 230 including the latch module 231 may be provided between the first cover part 221 and the second cover part 222 . The first and second transfer units are connected to the latch module 231 so that the door 100 can be opened or closed by rotation of the first handle 211 and the second handle 212 .

In this embodiment, the locking device 230 operates in an open mode in which the door 100 is opened by operating the latch module 231, or maintains the door 100 closed by stopping the operation of the latch module 231. It can operate in closed mode. The determination of the operation mode of the locking device 230 and the operation of the locking device 230 may be controlled by a processor (293 in FIG. 6).

If the door 100 is to be opened from the outside, if both the first and second conditions are satisfied, the locking device 230 operates in an open mode, and if at least one of the first and second conditions is not satisfied, In this case, the locking device 230 may operate in a closed mode. That is, when the locking device 230 operates in the open mode, the latch module 231 operates by the rotation of the first handle 211, and when the locking device 230 operates in the closed mode, the first handle 211 Even if is manipulated, rotation may not occur or the latch module 231 may not operate.

Meanwhile, when the door 100 is to be opened from the inside, when a rotation operation is applied to the second handle 212, the rotation operation operates the latch module 231 through the second transfer unit of the second cover unit 222 to open the door 100. When closing the door 100 from the inside, although not shown, a lock button (not shown) may be provided on the outside of the second cover part 222, and when the lock button is input, the latch module 231 is operated. It is possible to keep the door 100 closed by stopping it.

The fingerprint sensor 240 may be provided on the first surface 211-1 of the first handle 211 to detect a fingerprint. The fingerprint sensing unit 240 is provided at a position on the first handle 211 to detect a fingerprint of a thumb, and can detect a fingerprint when a thumb touches it. In this embodiment, the operation of the fingerprint sensor 240 may be controlled by a processor (293 in FIG. 6). The fingerprint detected by the fingerprint sensor 240 may be transmitted to the processor and used for primary authentication of the user.

In this embodiment, the position where the fingerprint of the thumb can be detected on the first handle 211 includes the first surface 211-1 and the third surface 211-3 of the first handle 211. can do. The first surface 211-1 of the first handle 211 may include a front surface (see FIG. 5) of the first handle 211. The third surface 211-3 of the first handle 211 may include a side surface (see FIG. 3) of the first handle 211 connecting the first handle 211 and the first cover part 221. there is. Additionally, the second surface 211-2 of the first handle 211 may include a rear surface (see FIG. 5) of the second handle 211.

In this embodiment, the fingerprint sensor 240 may detect a fingerprint of a thumb from the first surface 211-1 of the first handle 211. In another embodiment, the fingerprint sensor 240 is provided on the third surface 211-3 of the first handle 211 to detect a fingerprint of a thumb. The shape of the thumb gripping the first handle 211 may be different depending on the position of the fingerprint sensor 240 . As another embodiment, the fingerprint sensor may be provided above each of the plurality of buttons 241 to 244 included in the keypad 250 to be described later and detect fingerprints when fingers other than the thumb touch each other.

In this embodiment, the fingerprint sensor 240 may include a first fingerprint sensor (not shown) and a second fingerprint sensor (not shown). The first fingerprint sensor may be provided on the first surface 211-1 or the third surface 211-3 of the first handle 211 to detect a fingerprint of a thumb. The second fingerprint sensor may be provided above each of the plurality of buttons 241 to 244 included in the keypad 250 to detect fingerprints of fingers other than thumbs. Hereinafter, detecting a fingerprint may include sensing at least one of a thumb fingerprint and fingerprints of fingers other than the thumb by at least one of the first fingerprint sensing unit and the second fingerprint sensing unit.

In this embodiment, a reference fingerprint for opening the door 100 may be detected using the fingerprint sensor 240 at the beginning of use of the door lock 200 and stored in a memory ( 291 in FIG. 6 ). That is, the user's thumb fingerprint detected through the fingerprint sensor 240 at the beginning of use of the door lock 200 may be set as a reference fingerprint and stored in the memory 291 .

The keypad 250 may be provided on the first handle 211 to generate a password input signal. In this embodiment, the keypad 250 may include a plurality of buttons 251 to 254 and a plurality of switches 255 to 258. The plurality of buttons 251 to 254 may be provided to protrude outward from the second surface 211-2 of the first handle 211. The plurality of switches 255 to 258 may be switched on by pressure applied to one or more of the plurality of buttons 251 to 254 to generate a button input signal, that is, a password input signal. Button input signals generated by the plurality of switches 255 to 258 may be transmitted to a processor (293 in FIG. 6) and used for performing secondary authentication for a user.

In this embodiment, the number of the plurality of buttons 251 to 254 may be, for example, 4 or less, and the number of the plurality of switches 255 to 258 may be the same as the number of the plurality of buttons 251 to 254. When gripping the first handle 211, the index finger is positioned above the first button 251, the middle finger is positioned above the second button 252, and the ring finger is positioned above the third button 253. This location and a pinky finger may be located above the fourth button 254 .

In this embodiment, the keypad 250 switches one or more of the plurality of switches 255 to 258 by pressing one or more of the plurality of buttons 251 to 254 using one or more of the index finger, middle finger, ring finger, and little finger. Turned on, the first button input signal to the fourth button input signal may be generated.

The first switch 255 is switched on by the pressure applied by the index finger to the first button 251 to generate a first button input signal. The pressure applied by the middle finger to the second button 252 causes the second switch 256 to be switched on, thereby generating a second button input signal. The third switch 257 is switched on by the pressure applied by the ring finger to the third button 253 to generate a third button input signal. The fourth switch 258 may be switched on by the pressure applied by the little finger to the fourth button 254 to generate a fourth button input signal.

At the beginning of use of the door lock 200, a reference button input signal for opening the door 100 may be set and stored in a memory (291 in FIG. 6) using a plurality of buttons 251 to 254. At the beginning of use of the door lock 200, the user sequentially generates the first button input signal-second button input signal-third button input signal-fourth button input signal-second button input signal using the keypad 250. And, it can be set as a reference button input signal and stored in the memory 291. In this embodiment, the reference button input signal may be generated by various combinations of the input order and/or the number of inputs of the first button 251 to the fourth button 254 .

In this embodiment, Braille is displayed on the upper portions of the plurality of buttons 251 to 254, so that the information indicated by the buttons can be tactilely recognized.

Here, the information meant by the button is information meaning that, in the case of the first button 251, the first button 251 is a button for the index finger, so that the index finger is positioned on the first button 251. It may contain information that leads to In addition, information meant by a button is information meaning that, in the case of the second button 251, the second button 252 is a button for the middle finger, and the middle finger is positioned on the second button 252. It may contain information that induces you to do so. In addition, the information meant by the button is information indicating that the third button 253 is a button for the ring finger in the case of the third button 253, and the ring finger is located on the third button 252. It may contain information that induces you to do so. In addition, information meant by a button is information indicating that, in the case of the fourth button 254, the fourth button 254 is a button for the little finger, and the little finger is located on the fourth button 254. It may contain information that induces you to do so.

The light emitting unit 260 may output a situation of generating a button input signal using the keypad 250, that is, a situation of inputting a password as visual information using a light emitting element. Also, when the first condition and the second condition are satisfied, the light emitting unit 260 emits light in a first color to output that the door 100 is opened as visual information. In addition, when at least one of the first condition and the second condition is not satisfied, the light emitting unit 260 emits light in a second color to output as visual information that the door 100 remains closed without being opened. In this embodiment, the operation of the light emitting unit 260 may be controlled by a processor (293 in FIG. 6).

In this embodiment, the light emitting unit 260 may include a plurality of light emitting elements 261 to 264 . The first light emitting element 261 is connected to the first switch 255, the second light emitting element 262 is connected to the second switch 256, and the third light emitting element 263 is connected to the third switch 257. , and the fourth light emitting element 264 may be connected to the fourth switch 258 .

The first light emitting element 261 is turned on when the first switch 255 is switched on by the input of the first button 251, and the input of the first button 251 is released so that the first switch 255 is switched off. When it does, it can be turned off. The second light emitting element 262 is turned on when the second switch 256 is switched on by the input of the second button 252, and the second switch 256 is switched off when the input of the second button 252 is released. When it does, it can be turned off. The third light emitting element 263 is turned on when the third switch 257 is switched on by the input of the third button 253, and the third switch 257 is switched off when the input of the third button 253 is released. When it does, it can be turned off. The fourth light emitting element 264 is turned on when the fourth switch 258 is switched on by the input of the fourth button 254, and the fourth switch 258 is switched off when the input of the fourth button 254 is released. When it does, it can be turned off.

The identification mark detecting unit 270 contacts a reference fingerprint and a reference button input signal capable of opening the door 100 or an identification mark pre-stored with a password capable of opening the door 100 regardless of the fingerprint and button input signal. can detect The identification mark can be carried in the form of a touch key. When the identification mark detection unit 270 detects the identification mark, it is possible to operate the locking device 230 in an open mode with the highest priority. In this embodiment, the operation of the identification mark detector 270 may be controlled by a processor (293 in FIG. 6).

In this embodiment, if the identification mark includes a wireless identification tag (not shown), the identification mark detector 270 may include a wireless identification reader (not shown). A wireless identification tag is an IC chip or resin card with a built-in non-volatile memory and wireless communication function. It can be a device that can send and receive various data wirelessly using a certain frequency band. Erasing and reading are possible using wireless and non-contact. A reference fingerprint and a reference button input signal or a password for opening the door 100 regardless of the fingerprint and button input signal may be stored in a volatile and/or nonvolatile memory in the wireless identification tag. The wireless identification reader as the identification tag detector 270 may modulate the interrogation signal (CW signal) and transmit it to the wireless identification tag. The modulated interrogation signal may be transmitted to the wireless identification tag through a certain channel. The wireless identification tag obtains power by receiving the modulated signal, modulates the above-described information stored therein using the obtained power, and transmits the modulated information to the wireless identification reader, and the wireless identification reader receives the modulated information to obtain a reference fingerprint and reference. A password capable of opening the door 100 may be recognized regardless of a button input signal or a fingerprint and button input signal.

If the identification mark includes a short-range wireless communication tag (not shown), the identification mark detection unit 270 may include a short-range wireless communication reader (not shown). Short-distance wireless communication tag is an IC chip with built-in non-volatile memory and wireless communication function. It is a device that can transmit data in a non-contact manner within a short distance within 10 cm using a specific frequency of 13.56 MHz. It can detect distance and communicate. A reference fingerprint and a reference button input signal or a password for opening the door 100 regardless of the fingerprint and button input signal may be stored in a volatile and/or non-volatile memory in the NFC tag. When the short-range wireless communication reader as the identification tag detector 270 is touched or approached to the short-range wireless communication tag, a magnetic field is changed, and a current is generated in the short-range wireless communication tag due to the change in the magnetic field. Regardless of the reference fingerprint and reference button input signal stored in the communication tag or the fingerprint and button input signal, the password for opening the door 100 is transmitted to the short-range wireless communication reader, and the short-range wireless communication reader receives the reference fingerprint and reference button input signal. Alternatively, a password capable of opening the door 100 may be recognized regardless of a fingerprint and a button input signal.

If the identification mark includes an image code (not shown), the identification mark detection unit 270 may include a scanner (not shown) having an image code decoding function. The image code may include a bar code, a quick response code (QR code), or another image code. The QR code is a matrix-type two-dimensional barcode representing information in a black and white plaid pattern. That is, the QR code is a two-dimensional barcode that overcomes the capacity limitation of general barcodes and expands its format and content, and can store character data in addition to numbers by having vertical and horizontal information. The QR code has a two-dimensional shape vertically and horizontally, so it can have more information, and can store character data such as alphabets and Chinese characters in addition to numbers. In order to facilitate data representation and reading, these QR codes include quiet zones, position detection patterns (including separators), timing patterns, alignment patterns, format information, version information, data areas (including error correction code areas), etc. area is divided. A password for opening the door 100 regardless of a reference fingerprint and a reference button input signal or a fingerprint and button input signal may be stored in the data area of the QR code. The scanner is equipped with software or application to decrypt the image code, and after the scanner scans the image code to acquire the corresponding image, it decrypts the image code in a specific format that has been encrypted, and stores the reference fingerprint and reference button in the data area. A password capable of opening the door 100 may be obtained regardless of input signals or fingerprint and button input signals.

In this embodiment, the identification mark detector 270 may be provided on the third surface 121-3 of the first handle 211. In one embodiment, when the fingerprint detection unit 240 is provided on the third surface 121-3 of the first handle 211, the identification mark detection unit 270 and the fingerprint detection unit 240 are located at different positions. may be provided.

In this embodiment, the door lock 200 may further include a speaker (280 in FIG. 6). The speaker 280 may be provided inside the cover 220 and connected to a plurality of switches 255 to 258 . The speaker 280 may output a pre-stored audio signal as one or more of the plurality of switches 255 to 258 are switched on by pressure applied to one or more of the plurality of buttons 251 to 254. The operation of the speaker 280 may be controlled by a processor (293 in FIG. 6).

The speaker 280 may output a pre-stored audio signal when the first switch 255 is switched on by the input of the first button 251 . In the same way, in the speaker 280, the second switch 256 is switched on by the input of the second button 252, the third switch 257 is switched on by the input of the third button 253, and the fourth When the switch 258 is switched on, a pre-stored audio signal may be output. All pre-stored audio signals may be the same or may be different for each of the plurality of buttons 251 to 254.

Also, when the first condition and the second condition are satisfied, the speaker 280 may output a first audio signal to output that the door 100 is opened as auditory information. In addition, the speaker 280 may output a second audio signal to output as auditory information that the door 100 is not opened and maintained in a closed state when at least one of the first condition and the second condition is not satisfied.

5 is an exemplary view illustrating an operation situation of a door lock according to the present embodiment. In the following description, descriptions of overlapping parts with those of FIGS. 1 to 4 will be omitted.

Referring to FIG. 5 , while the user grips the first handle 211, the fingerprint of the thumb is detected through the first fingerprint sensor among the fingerprint sensor 240 provided on the first surface 211-1, and , An example of generating a button input signal through the keypad 250 provided on the second surface 211-2 is shown.

In this embodiment, the processor ( 293 in FIG. 6 ) may perform primary authentication for the user by comparing the fingerprint received from the fingerprint sensor 240 with a previously stored reference fingerprint. In addition, the processor 293 may perform secondary authentication for the user by comparing the button input signal received from the keypad 250 with a previously stored reference button input signal. In this embodiment, the authentication performance result may include success or failure. The fact that the authentication result is successful may include a case in which the input signal (fingerprint, button input signal) and the pre-stored reference signal (reference fingerprint, reference button input signal) are identical as a result of comparison, and the authentication result is failure. This may include a case in which the comparison result between the input signal and the pre-stored reference signal is different.

The processor 293 may determine that the locking device 230 is in the open mode according to both the results of the first authentication of the user and the second authentication of the user being successful. In this case, the door 100 may be opened by rotating the first handle 211 .

However, the processor 293 may determine the locking device 230 to be in the closed mode according to the failure of at least one of the result of performing the first authentication for the user and the result of performing the second authentication for the user. In this case, even if the first knob 211 is rotated, the door 100 cannot be opened.

6 is a block diagram shown to schematically explain the door lock according to the present embodiment. In the following description, descriptions of portions overlapping those of FIGS. 1 to 5 will be omitted. Referring to FIG. 6 , the door lock 200 includes a handle member 210, a cover part 220, a locking device 230, a fingerprint detection unit 240, a keypad 250, a light emitting unit 260, and identification mark detection. It may include a unit 270, a speaker 280, a memory 291, a power supply 292, and a processor 293.

The handle member 210 may include a first handle 211 provided on an outer wall of the door 100 and a second handle 212 provided on an inner wall of the door 100 . The cover part 220 may be provided between the door 100 and the handle member 210 .

The locking device 230 operates in an open mode in which the door 100 is opened by operating the latch module 231 under the control of the processor 293, or the door 100 is closed by stopping the operation of the latch module 231. It can operate in a closed mode that maintains

The fingerprint sensor 240 may detect a fingerprint and transmit a fingerprint detection result to the processor 293 . In this embodiment, the fingerprint sensor 240 may include a first fingerprint sensor and a second fingerprint sensor. The first fingerprint sensor may be provided on the first surface 211-1 or the third surface 211-3 of the first handle 211 to detect a fingerprint of a thumb. The second fingerprint sensor may be provided above each of the plurality of buttons 241 to 244 included in the keypad 250 to detect fingerprints of fingers other than thumbs. Hereinafter, detecting a fingerprint may include sensing at least one of a thumb fingerprint and fingerprints of fingers other than the thumb by at least one of the first fingerprint sensing unit and the second fingerprint sensing unit.

The keypad 250 may be provided on the first knob 211 to generate a password input signal and transmit the password input signal to the processor 293 . The keypad 250 may include a plurality of buttons 251 to 254 and a plurality of switches 255 to 258. The plurality of buttons 251 to 254 may be provided to protrude outward from the second surface 211-2 of the first handle 211. The plurality of switches 255 to 258 may be switched on by pressure applied to one or more of the plurality of buttons 251 to 254 to generate a button input signal, that is, a password input signal.

The light emitting unit 260 indicates that a situation in which a button input signal is generated using the keypad 250, that is, a situation in which a password is input, and results of performing primary authentication for the user and performing secondary authentication for the user are all successful. Depending on the situation in which the locking device 230 is determined to be in the open mode, and at least one of the results of performing the first authentication for the user and the result of performing the second authentication for the user is failure, the locking device 230 is determined to be in the closed mode. The situation can be output as visual information using a light emitting device. In this embodiment, the light emitting unit 260 may include a plurality of light emitting elements 261 to 264 .

The identification mark detecting unit 270 senses contact of a reference fingerprint and a reference button input signal capable of opening the door 100 or an identification mark stored with a password capable of opening the door 100 regardless of the fingerprint and button input signal. can detect Here, being able to open the door 100 may be the same as determining that the processor 293 sets the locking device 230 to an open mode. When the identification mark detection unit 270 detects the identification mark, it is possible to operate the locking device 230 in an open mode with the highest priority.

The speaker 280 generates a button input signal using the keypad 250, that is, a situation in which a password is input, and both the first authentication result and the second authentication result for the user are successful. The locking device 230 is determined to be in the closed mode according to a situation in which the locking device 230 is determined to be in the open mode and at least one of the first authentication result of the user and the second authentication result of the user is a failure. The situation may be output as auditory information using an audio signal.

The memory 291 may store information and commands for operating the door lock 200 . Also, the memory 291 may store information about one or more users who want to interact with the door lock 200 . Such user information may include a user's reference fingerprint and a reference button input signal (reference password) set by the user.

In this embodiment, the memory 291 may perform a function of temporarily or permanently storing data processed by the processor 293. Here, the memory 291 may include magnetic storage media or flash storage media, but the scope of the present invention is not limited thereto. The memory 291 may include built-in memory and/or external memory, and may include volatile memory such as DRAM, SRAM, or SDRAM, one time programmable ROM (OTPROM), PROM, EPROM, EEPROM, mask ROM, flash ROM, Non-volatile memory such as NAND flash memory or NOR flash memory, flash drive such as SSD, compact flash (CF) card, SD card, Micro-SD card, Mini-SD card, Xd card, or memory stick , or a storage device such as an HDD.

The power supply unit 292 may supply power to each component of the door lock 200 by receiving external power and internal power under the control of the processor 293 . The power supply 292 may include a battery (not shown), and the battery may be a built-in battery or a replaceable battery. The battery may be charged using a wired or wireless charging method, and the wireless charging method may include a magnetic induction method or a magnetic resonance method. In this embodiment, the battery is a nickel-cadmium battery, a lead acid battery, a nickel-metal hydride battery (NiMH), a lithium-ion battery, a lithium polymer battery A rechargeable secondary battery such as a battery) may be included, but is not limited thereto.

In this embodiment, the processor 293 can control charging and discharging of the battery and can protect the battery by monitoring state information of the battery. For example, the processor 293 may perform an overcharge protection function, an overdischarge protection function, an overcurrent protection function, an overvoltage protection function, an overheat protection function, and a cell balancing function for a battery. In addition, the processor 293 may obtain current, voltage, temperature, remaining power amount, lifespan, state of charge (SOC), and the like of the battery. For example, although not shown, the processor 293 may measure the voltage and temperature of the battery using a sensor unit (not shown). When detecting that an abnormal situation such as overcharge, overdischarge, overcurrent, or high temperature has occurred in the battery, the processor 293 may protect the battery by controlling charging/discharging of the battery.

The processor 293 may perform primary authentication for the user by comparing the fingerprint received from the fingerprint sensor 240 with a pre-stored reference fingerprint. In addition, the processor 293 may perform secondary authentication for the user by comparing the button input signal received from the keypad 250 with a previously stored reference button input signal.

The processor 293 may determine that the locking device 230 is in the open mode according to both the results of the first authentication of the user and the second authentication of the user being successful. In this case, the door 100 may be opened by rotating the first handle 211 . However, the processor 293 may determine the locking device 230 to be in the closed mode according to the failure of at least one of the result of performing the first authentication for the user and the result of performing the second authentication for the user. In this case, even if the first knob 211 is rotated, the door 100 cannot be opened.

In this embodiment, the processor 293 may control the entire operation of the door lock 200. Here, a 'processor' may refer to a data processing device embedded in hardware having a physically structured circuit to perform functions expressed by codes or instructions included in a program, for example. As an example of such a data processing device built into hardware, a microprocessor, a central processing unit (CPU), a processor core, a multiprocessor, an application-specific integrated (ASIC) circuit), field programmable gate array (FPGA), etc., but the scope of the present invention is not limited thereto.

7 is a flowchart illustrating a door lock driving method according to the present embodiment. In the following description, descriptions of portions overlapping those of FIGS. 1 to 6 will be omitted.

Referring to FIG. 7 , in step S710, the processor 293 of the door lock 200 may receive a fingerprint detection result through the fingerprint detection unit 240 provided on the door 100. In this embodiment, the fingerprint sensor 240 may include a first fingerprint sensor and a second fingerprint sensor. The first fingerprint sensor may be provided on the first surface 211-1 or the third surface 211-3 of the first handle 211 to detect a fingerprint of a thumb. The second fingerprint sensor may be provided above each of the plurality of buttons 241 to 244 included in the keypad 250 to detect fingerprints of fingers other than thumbs. Hereinafter, detecting a fingerprint may include sensing at least one of a thumb fingerprint and fingerprints of fingers other than the thumb by at least one of the first fingerprint sensing unit and the second fingerprint sensing unit.

In step S720, the processor 293 of the door lock 200 includes a plurality of buttons 251 to 254 provided to protrude outward from the second surface 211-2 of the first handle 211, and a plurality of buttons ( Button input signals may be received from the keypad 250 including a plurality of switches 255 to 258 that are switched on by pressure applied to one or more of the buttons 251 to 254 to generate button input signals.

In step S730, the processor 293 of the door lock 200 compares the fingerprint received from the fingerprint sensor 240 with the previously stored reference fingerprint, and performs the primary authentication for the user, and the keypad 250 receives the A second authentication result for the user may be generated through comparison between the button input signal and the previously stored reference button input signal.

In step S740, the processor 293 of the door lock 200 may determine that the locking device 230 is in an open mode according to both the results of performing the first authentication for the user and the second authentication for the user being successful. In this case, the door 100 may be opened by rotating the first handle 211 .

In step S750, the processor 293 of the door lock 200 may determine the locking device 230 in the closed mode according to one or more failures among the result of performing the first authentication for the user and the result of performing the second authentication for the user. there is. In this case, even if the first knob 211 is rotated, the door 100 cannot be opened.

Embodiments according to the present invention described above may be implemented in the form of a computer program that can be executed on a computer through various components, and such a computer program may be recorded on a computer-readable medium. At this time, the medium is a magnetic medium such as a hard disk, a floppy disk and a magnetic tape, an optical recording medium such as a CD-ROM and a DVD, a magneto-optical medium such as a floptical disk, and a ROM hardware devices specially configured to store and execute program instructions, such as RAM, flash memory, and the like.

Meanwhile, the computer program may be specially designed and configured for the present invention, or may be known and usable to those skilled in the art of computer software. An example of a computer program may include not only machine language code generated by a compiler but also high-level language code that can be executed by a computer using an interpreter or the like.

In the specification of the present invention (particularly in the claims), the use of the term "above" and similar indicating terms may correspond to both singular and plural. In addition, when a range is described in the present invention, it includes an invention in which individual values belonging to the range are applied (unless there is a description to the contrary), and each individual value constituting the range is described in the detailed description of the invention Same as

The steps constituting the method according to the present invention may be performed in any suitable order unless an order is explicitly stated or stated to the contrary. The present invention is not necessarily limited according to the order of description of the steps. The use of all examples or exemplary terms (eg, etc.) in the present invention is simply to explain the present invention in detail, and the scope of the present invention is limited due to the examples or exemplary terms unless limited by the claims. it is not going to be In addition, those skilled in the art can appreciate that various modifications, combinations and changes can be made according to design conditions and factors within the scope of the appended claims or equivalents thereof.

Therefore, the spirit of the present invention should not be limited to the above-described embodiments and should not be determined, and all scopes equivalent to or equivalently changed from the claims as well as the claims described below are within the scope of the spirit of the present invention. will be said to belong to

100: door 200: door lock
210: handle member 220: cover part
230: locking device 240: fingerprint sensor
250: keypad 260: light emitting unit
270: identification mark detection unit 280: speaker
291 memory 292 power supply
293: processor

Claims (11)

As a door lock,
A handle member including a first handle provided on an outer wall of the door and a second handle provided on an inner wall of the door, and configured to open and close the door by rotating one of the first handle and the second handle. ;
The door is operated in an open mode by operating the latch module by rotational manipulation of any one of the first handle and the second handle, or in a closed mode in which the door is kept closed by stopping the operation of the latch module. operating lock;
a first fingerprint sensor provided on a first surface of the first handle to detect a fingerprint;
A keypad including a plurality of buttons provided to protrude outward from the second surface of the first handle and a plurality of switches that are switched on by pressure applied to one or more of the plurality of buttons to generate a button input signal ; and
Operation of the locking device based on the result of performing the primary authentication of the user through comparison of the fingerprint and the reference fingerprint and the result of performing the secondary authentication of the user through comparison of the button input signal and the reference button input signal Including a processor that determines the mode,
door lock. According to claim 1,
The first fingerprint sensor,
Is provided at a position on the first handle to detect the fingerprint of the thumb, configured to sense the fingerprint when the thumb touches,
door lock. According to claim 1,
A second fingerprint sensor provided above one or more of the plurality of buttons and configured to sense a fingerprint when one or more fingers other than the thumb touch the second fingerprint sensor,
door lock. According to claim 1,
Braille is provided on the top of each of the plurality of buttons to tactilely recognize the information that the button means when touched.
door lock. According to claim 1,
Further comprising a speaker connected to the plurality of switches,
the speaker,
Configured to output a pre-stored audio signal as the switch is switched on by a pressure applied to one or more of the plurality of buttons,
door lock. According to claim 1,
the processor,
When both the first authentication result of the user and the second authentication result of the user are successful, the locking device is determined to be in an open mode;
Configured to determine the locking device as a closed mode according to a failure of at least one of the result of performing the primary authentication of the user and the result of performing the secondary authentication of the user,
door lock. According to claim 6,
Further comprising a plurality of light emitting elements connected to each of the plurality of switches,
The plurality of light emitting elements,
When the first authentication result of the user and the second authentication result of the user are both successful, the plurality of light emitting elements emit light in a first color according to a first light emission control signal received from the processor;
When at least one of the result of performing the primary authentication for the user and the result of performing the secondary authentication for the user fails, the plurality of light emitting elements emit light in a second color by the second light emission control signal received from the processor. configured to
door lock. According to claim 1,
Further comprising an identification mark detection unit for detecting contact between the reference fingerprint capable of opening the door and the identification mark in which the reference button input signal is stored,
the processor,
Upon receiving a signal that the identification mark is contacted from the identification mark detection unit, configured to operate the locking device in an open mode with the highest priority.
door lock. A method of driving a door lock performed by a processor provided in the door lock,
Receiving a result of detecting a fingerprint through a first fingerprint sensor provided on a first surface of a first handle provided on an outer wall of the door;
A keypad including a plurality of buttons provided to protrude outward from the second surface of the first handle and a plurality of switches that are switched on by pressure applied to one or more of the plurality of buttons to generate a button input signal Receiving the button input signal from; and
The first handle Determining an operation mode of a locking device that operates in an open mode to open the door by operating the latch module by a rotational operation of the latch module or operates in a closed mode to keep the door closed by stopping the operation of the latch module. including,
How to drive a door lock. According to claim 9,
The step of determining the operation mode of the locking device,
determining that the locking device is in an open mode when both the first authentication result and the second authentication result of the user are successful; and
Determining the locking device to be in a closed mode according to a failure of at least one of the first authentication result of the user and the second authentication result of the user,
How to drive a door lock. A computer-readable recording medium having recorded thereon a program that, when executed by at least one processor, causes the at least one processor to perform one of the methods of claims 9 and 10.

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