Touch-type door lock for visually impaired person

Abstract

The present invention relates to a touch-type door lock for a visually impaired person, which enables use by the visually impaired person by providing a braille number input window via a touch screen according to a selection of a user. The touch-type door lock for a visually impaired person according to the present invention comprises a touch screen (120) which is activated by a user's touch and displays numbers. The touch-type door lock (100) operates in a braille mode when a wired earphone or a wireless earphone is connected thereto, displays, on the touch screen (120), a braille number input window (122) to which a braille number can be input, recognizes an input braille number when a braille number is input to the braille number input window (122) displayed on the touch screen (120), and opens a door opening and closing device (150) when the recognized braille number matches a registered password, thereby enabling the visually impaired person to open the touch-type door lock with a simple operation.

Description

Touch-sensitive door lock for the visually impaired

[0001] The present invention relates to a touch-type door lock, and more particularly, to a touch-type door lock for the visually impaired that provides a Braille number input window through a touch screen according to the user's selection so that the visually impaired can use it.

[0002] Push-button door locks, often installed on the front doors of homes and offices, allow users to open the door by entering a registered password, eliminating the need for a separate key. These locks are widely used due to their convenience. These locks typically feature a numeric keypad, allowing users to easily open the door by selecting the corresponding numeric keypad. Recently, Braille characters have been added to the bottom of these keys, allowing both visually impaired and non-visual users to use the lock.

[0003] Recently, touch-sensitive door locks have become more popular than push-button door locks. Touch-sensitive door locks feature digital numbers displayed on a touchscreen, which recognizes the number and unlocks the door with a user's touch. Compared to push-button door locks, these types of locks are less prone to button failure, damage, or contamination. Furthermore, they offer greater security, as the printed portion of the button won't fade away, exposing the password, even after prolonged use.

[0004] However, since touch-type door locks do not have protruding numbers but instead display digital numbers on the touch screen, and thus cannot be expressed in protruding Braille, there was a problem in that the visually impaired could not use the touch-type door lock.

[0005] The present invention has been proposed to solve the problems of conventional touch-type door locks, and the purpose of the present invention is to provide a touch-type door lock that provides a Braille number input window on a touch screen according to the user's selection, so that not only general users but also visually impaired people can use it with simple operation.

[0006] In a touch-type door lock having a touch screen that is activated by a user's touch and displays numbers, when wired earphones or wireless earphones are connected to the touch-type door lock, the touch-type door lock operates in a Braille mode, displays a Braille number input window for inputting Braille numbers on the touch screen, and when Braille numbers are input into the Braille number input window displayed on the touch screen, the input Braille numbers are recognized, and when the recognized Braille numbers match a registered password, the door opening / closing device is opened.

[0007] Here, the touch-type door lock is provided with an earphone hole formed on one side of the body; and a control unit that recognizes the wired earphone connection and operates the touch-type door lock in Braille mode when a wired earphone terminal is connected to the earphone hole.

[0008] In addition, the touch-type door lock may be provided with a wireless communication unit having a Bluetooth communication module formed on one side of the body; and a control unit that recognizes the wireless earphone connection and operates the touch-type door lock in Braille mode when a wireless earphone and Bluetooth communication are connected through the Bluetooth communication module of the wireless communication unit.

[0009] It is preferable that the above control unit recognizes Braille numbers entered in the Braille number input window of the touch screen and outputs the recognized numbers as voice through connected wired or wireless earphones.

[0010] In addition, when wired or wireless earphones are connected, the control unit preferably guides the user to register a new password by entering Braille numbers in the Braille number input window of the touch screen when a password is not set for the touch-type door lock or the set password is to be changed, and ii) when the user wants to open the door lock using the registered password, it guides the user to enter the password by Braille numbers in the Braille number input window of the touch screen through the connected wired or wireless earphones.

[0011] Meanwhile, when the wired or wireless earphones that were connected are disconnected, the control unit switches the touch screen to a standby mode in a power-saving state or a normal mode that displays general numbers.

[0012] The above control unit is provided with an RF card authentication unit that authenticates an RF card when an RF card is recognized through an RF card communication module of a wireless communication unit formed on one side of the body; a mode determination unit that determines whether the touch screen is in a normal mode when a user touches the screen in a standby mode, which is a power-saving state, and determines whether the touch screen is in a Braille mode when a wired earphone or wireless earphone connection is recognized; a normal mode processing unit that, when the mode determination unit determines the touch screen to be in a normal mode, displays a number display window on the touch screen and then recognizes a number touched by the user to authenticate whether the password is correct; a Braille mode processing unit that, when the mode determination unit determines the touch screen to be in a Braille mode, displays a Braille number input window on the touch screen and then recognizes a Braille number entered by a visually impaired person to authenticate whether the password is correct; and a locking device driving unit that, when the password is authenticated through any one of the RF card authentication unit, the normal mode processing unit, and the Braille mode processing unit, drives a door opening / closing device to open the door lock.

[0013] Meanwhile, a Braille mode switching unit may be provided on one side of the body of the touch-type door lock to generate a Braille mode switching signal by the touch of a visually impaired person and transmit it to a control unit, thereby allowing the touch-type door lock to operate in Braille mode under the control of the control unit.

[0014] When the control unit receives a Braille mode switching signal from the Braille mode switching unit, the control unit operates the touch-type door lock in Braille mode to display a Braille number input window on the touch screen, guides the user to enter a password using Braille numbers in the Braille number input window through a speaker, and when Braille numbers are entered in the Braille number input window, a sound effect indicating that the Braille numbers have been entered is output through the speaker, and when all Braille numbers corresponding to the password are entered, the entered Braille numbers are authenticated to open the door lock, and when the door lock is opened, the touch-type door lock is switched to a standby mode or a normal mode.

[0015] According to the present invention, when a wired or wireless earphone used by a visually impaired person is connected to a touch-type door lock, a Braille number input window is displayed on the touch screen, and when the visually impaired person inputs a password in Braille into the Braille number input window, the input Braille password is authenticated to open the door lock, thereby enabling the visually impaired person to open the touch-type door lock by simply operating it.

[0016] Additionally, when a visually impaired person enters a password in Braille, the entered password is output as a voice through the earphones, which has the effect of allowing the visually impaired person to confirm the password he or she entered while keeping it secret from the outside world.

[0017] Figure 1 is a diagram showing the state of use of a touch-type door lock according to the present invention.

[0018] Figure 2 is a diagram showing the state of use in which an earphone is connected to the earphone hole of a touch-type door lock according to the present invention.

[0019] Figure 3 is a block diagram of a touch keypad according to the present invention.

[0020] Figure 4 is a block diagram of a control unit provided in a touch-type door lock according to the present invention.

[0021] Figure 5 is a flowchart showing the operation process of a touch-type door lock according to the present invention.

[0022] Figure 6 is an example of a standby mode state of a touch-type door lock according to the present invention.

[0023] Figure 7 is an example of Braille numbers being entered in the Braille number input window of a touch-type door lock according to the present invention.

[0024] Figure 8 is an example of a normal mode state of a touch-type door lock according to the present invention.

[0025] Figure 9 is a diagram showing the state of use of a touch-type door lock according to another embodiment of the present invention.

[0026] Fig. 10 shows a block diagram of a touch-type door lock according to another embodiment of the present invention.

[0027] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0028]

[0029] Figure 1 is a diagram showing the usage status of a touch-type door lock for the visually impaired according to an embodiment of the present invention.

[0030] As illustrated in FIG. 1, the body (101) of the touch-type door lock (100) according to the present invention is provided with a touch screen (120) that displays numbers to enable the user to select a password, a wireless communication unit (160) equipped with an RF card communication module (161) that recognizes an RF card carried by the user, a door handle (140) that can open and close the front door, and an earphone hole (135) into which a wired earphone terminal carried by the user is connected.

[0031] The touch-type door lock (100) having the above structure, like a general touch-type door lock, receives RF card information from the RF card communication module (161) provided in the wireless communication unit (160) when the user places the RF card in his possession near the wireless communication unit (160), authenticates the RF card information, and opens the door lock. If there is no RF card, the user can open the door lock by touching the touch screen (120) to activate the number display window (121), and then selecting the number (including symbols) displayed in the number display window (121) of the touch screen (120) and entering a password.

[0032]

[0033] Meanwhile, the earphone hole (135) formed in the touch-type door lock (100) according to the present invention is formed for use by the visually impaired, and Fig. 2 shows a state in which a wired earphone is connected to the earphone hole of the touch-type door lock.

[0034] As shown in Fig. 2, when a visually impaired person connects the wired earphone terminal that he / she owns by inserting it into the earphone hole (135), the Braille mode is operated so that a Braille touch input window (122) is displayed on the touch screen (120), and when the visually impaired person inputs the number corresponding to the password in Braille into the Braille touch input window (122), the door lock can be opened. In this process, the touch-type door lock (100) recognizes the Braille number input by the visually impaired person and outputs it as voice through the wired earphone, so that the visually impaired person can confirm whether he / she has correctly input the password in Braille.

[0035]

[0036] Figure 3 shows a block diagram of a touch keypad according to an embodiment of the present invention.

[0037] As illustrated in FIG. 3, a touch-type door lock (100) according to the present invention is provided with a touch screen (120) for entering a password, a door handle (140) that allows a user to open and close a door, a door opening / closing device (150) that controls the opening / closing of the door by opening or closing the door lock, a speaker (130) that outputs door lock usage instructions and operating status in voice or sound, a wireless communication unit (160) equipped with an RF card communication module (161) that recognizes an RF card carried by a user, a power supply unit (170) that supplies power to the door lock, and a control unit (110) that controls the operation of each of the above components.

[0038] The above touch screen (120) is a display device in which input and display are performed on a single screen, and this touch screen (120) is usually in a standby mode in which the screen is turned off and in a power-saving state. When a user touches the touch screen in the standby mode, it switches to a normal mode, the touch screen (120) is activated, and a number display window (121) is displayed. The user selects a number displayed on the number display window (121) and enters a password to open the door lock. Meanwhile, in the present invention, when a wired earphone terminal is connected to the earphone hole (135), it switches to a Braille mode, and a Braille number input window (122) is displayed on the touch screen (120). When a visually impaired person directly enters a Braille number corresponding to a password on the Braille number input window (122), this is recognized and the door lock is opened. Generally, the touch screen (120) of a touch-type door lock (120) displays not only numbers but also symbols (#, *), and these are combined to open the door. Therefore, the numbers referred to in the present invention are described as concepts including symbols.

[0039] The above door handle (140) is used when a user holds and rotates the door to open or close the door, and the door opening / closing device (150) moves the locking device of the door lock to the open or closed position according to the control of the control unit (110), so that when the door lock is opened, the user can open the door using the door handle (140).

[0040] The above speaker (130) is a voice output device that provides guidance on the use of the door lock or the operating status to the user. When the speaker (130) operates in normal mode, it provides sound or voice guidance to the user.

[0041] The above earphone hole (135) provides voice guidance to a visually impaired person through wired earphones when operating in Braille mode. That is, when a wired earphone terminal of a visually impaired person is connected to the earphone hole (135), the control unit (110) switches the operation mode of the door lock to Braille mode and outputs guidance for using the door lock in voice or sound through the wired earphones connected to the earphone hole (135).

[0042] The above wireless communication unit (160) is a communication device that performs wireless communication, and the wireless communication unit (160) is equipped with an RF card communication module (161) that performs wireless communication with an RF card carried by a user or a visually impaired person. The RF card communication module (161) receives RF card information and transmits it to the control unit (110).

[0043] The power supply unit (170) supplies power to each component of the touch-type door lock (100) through a battery, and the control unit (110) controls the operation of each component.

[0044]

[0045] Figure 4 shows a block diagram of a control unit provided in a touch-type door lock according to an embodiment of the present invention.

[0046] As illustrated in FIG. 4, the control unit (110) provided in the touch-type door lock (100) according to the present invention includes an RF card authentication unit (112), a mode determination unit (113), a general mode processing unit (114), a Braille mode processing unit (115), a locking device driving unit (116), a memory (117), and an MCU (111).

[0047] The above RF card authentication unit (112) recognizes and authenticates RF card information received through the RF card communication module (161) of the wireless communication unit (160), and opens the door lock through the locking device driving unit (116).

[0048] The above mode determination unit (113) is a module that determines the operation mode of the touch-type door lock (100). If there is no user touch on the touch screen (120), it determines it as standby mode, if the user touches it, it determines it as normal mode, and if an earphone terminal is connected to the earphone hole (135), it determines it as Braille mode.

[0049] The above general mode processing unit (114) is a module that, if the mode determination unit (113) determines that the mode is the general mode, displays a number display window (121) on the touch screen (120) and then recognizes the number touched by the user to authenticate whether the password is correct. If the password matches, the door lock is opened through the locking device driving unit (116). If the password does not match, the speaker (130) notifies the user of the password mismatch with a voice or audio signal, so that the user can re-enter the password.

[0050] The above Braille mode processing unit (115) is a module that, when the mode determination unit (113) determines that the mode is Braille, displays a Braille number input window (122) on the touch screen (120), and then, when a visually impaired person inputs a Braille number, recognizes the Braille number and authenticates whether the password is correct. This Braille mode processing unit (115) guides the Braille number input through a wired earphone connected to the earphone hole (135), recognizes the Braille number entered by the visually impaired person, and outputs the entered number through the wired earphone so that the visually impaired person can confirm it. Then, when all Braille numbers corresponding to the password are sequentially entered, it authenticates whether the password is correct. If the password matches, the door lock is opened through the locking device driving unit (116), and if the password does not match, it notifies the user through the wired earphone that the password does not match, so that the user can re-enter the password in Braille.

[0051] The above lock driving unit (116) drives the door opening / closing device (150) to open the door lock when the password is authenticated through the general mode processing unit (114) or the Braille mode processing unit (115). The memory (117) stores the setting status of the touch-type door lock (100) including the set door lock password, and the MCU (Micro Controller Unit) (111) controls the operation of each component.

[0052]

[0053] Hereinafter, the process of opening a door lock using a touch-type door lock (100) having the above configuration will be described.

[0054]

[0055] Figure 5 is a flowchart showing the operation process of a touch-type door lock according to an embodiment of the present invention.

[0056] Step S100: The touch-type door lock (100) maintains a standby mode in which the touch screen (120) is normally turned off to save power. Fig. 6 illustrates an example of a standby mode state of the touch-type door lock, in which nothing is displayed on the touch screen (120).

[0057]

[0058]

[0059] *Step S200, S210: In the standby mode, when the earphone terminal is connected to the earphone hole (135) formed in the touch-type door lock (100) and the wired earphone is connected (S200), the touch-type door lock (100) switches to the Braille mode and displays the Braille number input window (122) on the touch screen (120) (S210). As in the above-described Fig. 2, when the wired earphone is connected to the earphone hole (135) of the touch-type door lock (100) and switches to the Braille mode, the touch-type door lock (100) can guide the user to input the password in Braille numbers in the Braille number input window (122) displayed on the touch screen (120) by voice through the wired earphone. If a password is not set for the touch door lock (100), the user may be guided to register a new password by entering Braille numbers in the Braille number input window (122). In addition, if the user wishes to change the preset password, the user may be guided to change the password by entering Braille numbers in the Braille number input window (122).

[0060] Step S220, S230: A visually impaired person can input a password by directly entering a Braille number into the Braille number input window (122) of the touch screen (120) (S220). The Braille number entered by the visually impaired person is recognized as a number by the control unit (110), and the recognized number is output as a voice through the wired earphone, so that the visually impaired person can confirm the number he or she entered (S230). Fig. 7 shows an example of Braille numbers entered into the Braille number input window of a touch-type door lock, in which the visually impaired person inputs numbers such as 1 and 6 in Braille. In an embodiment of the present invention, when a Braille number is entered by a visually impaired person, the entered Braille number is output as a voice through the wired earphone after waiting for 1 to 2 seconds, and this process is repeated until all Braille numbers corresponding to the password are entered.

[0061] Steps S240, S250, S260, S270, S280: When the Braille numbers corresponding to the password are all entered by the visually impaired person (S240), the control unit (100) verifies whether the entered password matches the registered password (S250), and if the passwords match, the door lock is opened (S260). If the passwords do not match, a message is sent through the wired earphones informing the visually impaired person that the passwords do not match (S270), and the visually impaired person is guided to re-enter the Braille numbers corresponding to the password (S280).

[0062] When the door lock is opened, the visually impaired person detaches the earphone terminal connected to the earphone hole (135), and accordingly, the touch screen (120) switches from the Braille mode to the standby mode or normal mode in a power-saving state. This above process can be performed repeatedly.

[0063]

[0064] *

[0065] Step S300, S310: Meanwhile, when the earphone terminal is not connected to the earphone hole (135) in the above step S200, if a touch of the touch screen (120) is detected by the user (S300), the touch-type door lock (100) switches to the normal mode and displays a number display window (121) on the touch screen (120) (S310). Fig. 8 shows an example of the normal mode state of the touch-type door lock, and in the normal mode, numbers for selecting a password are displayed on the number display window (121) of the touch screen (120).

[0066] Steps S320, S330, S260: A general user can input a password by sequentially touching and selecting numbers displayed on a number display window (121) of a touch screen (120) (S320). When all numbers corresponding to the password are entered by the user, the control unit (110) verifies whether the entered password matches the registered password (S330), and if the passwords match, the door lock is opened (S260). If the passwords do not match, an error sound indicating that the passwords do not match is output through the speaker (130) (S350), and the user is guided to re-enter the numbers corresponding to the password (S280).

[0067]

[0068] Steps S400, S330, S260, S350, S280: Meanwhile, when a user or a visually impaired person brings his / her RF card close to the RF card communication module (161) of the wireless communication unit (160) equipped in the touch-type door lock (100), the touch-type door lock (100) recognizes the RF card (S400), authenticates whether the RF card information is a registered card (S330), and opens the door lock if the RF card is authenticated (S260). If they do not match, an error sound is output through the speaker (130) (S350), and the user is guided to use the correct RF card (S280).

[0069]

[0070] In this way, in the present invention, when a wired earphone terminal is connected to the earphone hole (135) of the touch-type door lock (100), the Braille mode is switched to display a Braille number input window (122) on the touch screen (120), and when a Braille number is entered into the Braille number input window (122), it is recognized and authenticated to match the registered password, thereby opening the door lock. In addition, by recognizing the Braille number entered into the Braille number input window (122) and outputting the recognized number as a voice through the wired earphone connected to the earphone hole (135), external security is maintained while allowing a visually impaired person to confirm whether he or she has entered the Braille number correctly.

[0071]

[0072] Meanwhile, in the above-described embodiment of the present invention, a wired earphone terminal is connected to the touch-type door lock (100) and it is described that it operates in Braille mode. However, it is possible to operate in Braille mode not only through wired earphones but also through wireless earphones. Furthermore, even in the absence of wired or wireless earphones, the touch-type door lock (100) can be switched to Braille mode in an emergency and used.

[0073]

[0074] FIG. 9 is a diagram showing the state of use of a touch-type door lock according to another embodiment of the present invention, and FIG. 10 shows a block diagram of the touch-type door lock.

[0075] As shown in FIGS. 9 and 10, a Bluetooth communication module (162) and a Braille mode switching unit (125) are provided on one side of the body (101) of a touch-type door lock (100) according to another embodiment of the present invention.

[0076] The above Bluetooth communication module (162) is a wireless communication module that performs Bluetooth communication with wireless earphones, and is installed around the RF card communication module (161) to recognize wireless earphones used by a visually impaired person, connect Bluetooth communication, and transmit information about wireless earphones connected through Bluetooth communication to the control unit (110).

[0077] The above control unit (110) registers wireless earphone information when wireless earphones are first recognized through the Bluetooth communication module (162), and then recognizes the registered wireless earphones to automatically establish Bluetooth communication with the wireless earphones. During the wireless earphone registration process, the control unit (110) can guide the visually impaired person through the speaker (130) to register the wireless earphones, and the visually impaired person can register and use the wireless earphones he or she has with the touch-type door lock (100) by touching the touch screen (120).

[0078] Meanwhile, when the wireless earphones are connected to the Bluetooth communication, the control unit (110) switches the operation mode to the Braille mode and displays the Braille touch input window (122) on the touch screen (120), just as when the earphone terminal is connected to the earphone hole (135). Accordingly, the visually impaired person can open the door lock by entering the number corresponding to the password in Braille into the Braille touch input window (122). In this process, the touch-type door lock (100) outputs the Braille numbers entered by the visually impaired person as voice through the wireless earphones, thereby allowing the visually impaired person to confirm whether he or she has correctly entered the password in Braille.

[0079] When a visually impaired person opens a door using a touch-type door lock (100), and the Bluetooth communication connection between the touch-type door lock (100) and the wireless earphones is terminated due to the visually impaired person's operation or movement away from the door, the touch screen (120) of the touch-type door lock (100) switches from Braille mode to standby mode or normal mode.

[0080]

[0081] The above Braille mode switching unit (125) allows the visually impaired person to use the touch-type door lock (100) by switching the operation mode to Braille mode through a simple operation when the visually impaired person does not have wired or wireless earphones. The above Braille mode switching unit (125) can be manufactured as a button type or a touch type, and the Braille mode switching unit (125) is installed on one side of the body (101) of the touch-type door lock (100), for example, around the earphone hole (135) so that the visually impaired person can easily determine the location, and when the visually impaired person touches it, a touch signal is transmitted to the control unit (110) to switch the touch-type door lock (100) to Braille mode.

[0082] When the control unit (110) receives a touch signal from the Braille mode switching unit (125), it switches the operation mode to the Braille mode and displays the Braille touch input window (122) on the touch screen (120). During the Braille mode switching process, the control unit (110) can inform the user that the operation mode of the touch-type door lock (100) has been switched to the Braille mode through the speaker (130) and guide the user to input a password using Braille numbers in the Braille touch input window (122) displayed on the touch screen (120). When a visually impaired person inputs a Braille number through the Braille touch input window (122), a sound effect is output through the speaker (130) to inform the user that the Braille has been input normally, and the user is guided to input the next password sequentially. When all the Braille numbers corresponding to the password are entered, this is authenticated and the door lock is opened. When a visually impaired person opens the door using a touch door lock (100), the touch screen (120) of the touch door lock (100) switches from Braille mode to standby mode or normal mode.

[0083]

[0084] In this way, in the present invention, if a visually impaired person has wired or wireless earphones, he or she can use the touch-type door lock (100) in Braille mode by connecting the earphones to the touch-type door lock (100) via wire or wirelessly, and even if he or she does not have earphones, he or she can use the touch-type door lock (100) in Braille mode by touching the Braille mode switching unit (125).

[0085]

[0086] As such, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications and variations can be made by a person having ordinary knowledge in the technical field to which the present invention pertains within the scope equivalent to the technical idea of ​​the present invention and the scope of the patent claims to be described below.

Claims

1. In a touch-type door lock equipped with a touch screen (120) that is activated by a user's touch and displays numbers, The above touch-type door lock (100) is provided with an earphone hole (135) formed on one side of the body (101), a wireless communication unit (160) equipped with a Bluetooth communication module (162), and a control unit (110) for recognizing when a wired earphone terminal is connected to the earphone hole (135) or when a wireless earphone and Bluetooth communication are connected through the Bluetooth communication module (162) of the wireless communication unit (160), and for recognizing this and operating the touch-type door lock (100) in a Braille mode to display a Braille number input window (122) for entering Braille numbers on the touch screen (120), and for recognizing when a Braille number is entered in the Braille number input window (122) displayed on the touch screen (120), and for outputting the recognized number as a voice through the connected wired or wireless earphone, and for opening the door opening / closing device (150) when the recognized Braille number matches the registered password; The control unit (110) includes an RF card authentication unit (112) that authenticates the RF card when the RF card is recognized through the RF card communication module (161) of the wireless communication unit (160) formed on one side of the body (101), a mode determination unit (113) that determines the touch screen (120) as a normal mode when a user's touch occurs in the standby mode, which is a power-saving state, and determines the Braille mode when a wired earphone or wireless earphone connection is recognized, a normal mode processing unit (114) that displays a number display window (121) on the touch screen (120) if it is determined to be a normal mode through the mode determination unit (113) and then recognizes the number touched by the user to authenticate whether the password is correct, a Braille mode processing unit (115) that displays a Braille number input window (122) on the touch screen (120) if it is determined to be a Braille mode through the mode determination unit (113) and then recognizes the Braille number entered by the visually impaired person to authenticate whether the password is correct, and A touch-type door lock for the visually impaired, characterized in that it is equipped with a locking device driving unit (116) that drives a door opening / closing device (150) to open the door lock when a password is authenticated through any one of an RF card authentication unit (112), a general mode processing unit (114), and a Braille mode processing unit (115).

2. In paragraph 1, The above control unit (110) When wired or wireless earphones are connected, through the connected wired or wireless earphones, ⅰ) If a password is not set for the touch-type door lock (100) or the set password is to be changed, the user is guided to register a new password by entering it in Braille numbers in the Braille number input window (122) of the touch screen (120). ⅱ) A touch-type door lock for the visually impaired, characterized by guiding the user to enter the password in Braille numbers in the Braille number input window (122) of the touch screen (120) when attempting to open the door lock using a registered password.

3. The above control unit (110) A touch-type door lock for the visually impaired, characterized in that when the wired or wireless earphones that were connected are disconnected, the touch screen (120) is switched to a standby mode in a power-saving state or a normal mode that displays normal numbers.

4. In paragraph 1, A touch-type door lock for the visually impaired, characterized in that a Braille mode switching unit (125) is provided on one side of the body (101) of the touch-type door lock (100) to generate a Braille mode switching signal by the touch of a visually impaired person and transmit it to a control unit (110), thereby allowing the touch-type door lock (100) to be operated in Braille mode under the control of the control unit (110).

5. In paragraph 4, When the above control unit (110) receives a Braille mode switching signal from the Braille mode switching unit (125), The above touch-type door lock (100) is operated in Braille mode to display a Braille number input window (122) on the touch screen (120) and guide the user to enter a password in Braille numbers in the Braille number input window (122) through the speaker (130). When a Braille number is entered in the Braille number input window (122) above, a sound effect is output through the speaker (130) to indicate that the Braille number has been entered, and when all Braille numbers corresponding to the password are entered, the entered Braille number is authenticated to open the door lock. A touch-type door lock for the visually impaired, characterized in that when the door lock is opened, the touch-type door lock (100) is switched to standby mode or normal mode.

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