KR102485846B1 - Contactless smart door lock - Google Patents

Abstract

The present invention relates to a non-contact smart door lock, and more particularly, an external device unit interlocked with the door lock, a lock unit formed in the door lock and identifying a registered user's biometric information and password, and a control that controls the external device unit and the door lock. unit, the lock unit can be opened by the biometric information of a pre-registered user and a preset password, and the lock unit interlocks with an external device to access the pre-registered biometric information of the user sensed by the external device. can be opened remotely by

Description

Contactless smart door lock {CONTACTLESS SMART DOOR LOCK}

The present invention relates to a non-contact smart door lock, and more particularly, an external device unit interlocked with the door lock, a lock unit formed in the door lock to identify a registered user's biometric information and password, and a control unit controlling the external device unit and the door lock. Including, the lock unit can be opened by pre-registered user's biometric information and a preset password, and the lock unit interlocks with the external device unit by pre-registered user's biometric information sensed by the external device unit. Can be opened remotely.

In general, a door lock refers to a device that is installed in the front door, unlocks the door as the user inputs a password or uses a key, and operates so that the door is automatically locked when the user goes out.

In general, security devices are installed for security in offices, apartments, or specific spaces or facilities requiring security. When an outside intruder occurs, the security device transmits an alarm signal to the security company so that the security company can promptly mobilize to the scene.

As described above, in a general home, a special security system is provided by requesting a private security company, but it is common to mainly use a door lock device.

Currently, it is widely used in the entrances of apartments, offices, and entrances of ordinary homes, and in the case of these door lock systems, the range of use is increasing day by day due to the advantage of not having to carry a separate key by using a password.

Conventional door lock devices can be divided into an analog type door lock device that opens and closes a door phone using a key to open and close a door, and a digital type door lock device that electronically opens and closes a door lock by manipulating a button. The door lock device has a call button for visitors to call the landlord.

However, conventional door locks use a password method or a fingerprint recognition method that are simply used only for front door control.

Therefore, in the case of password, the fingerprint of the number part remains and the security is low, and in the case of fingerprint recognition, the security may be high, but it is difficult to recognize.

Therefore, it is necessary to develop a non-contact smart door lock that can open the front door or door without leaving a fingerprint in a non-contact manner and can enhance security and convenience at the same time by connecting to an external device such as a smartphone.

10-2012-0041876 A

An object of the present invention is to solve the problem of target crime due to residual fingerprints through a non-contact smart door lock and to enhance security and relieve anxiety of household members and increase safety.

In order to achieve the above object, according to the contactless smart door lock according to the present invention, the door lock; An external device unit interlocked with the door lock; Doedoe formed in the door lock, the lock unit for identifying the biometric information and password of the pre-registered user; and a control unit controlling the external device unit and the door lock, wherein the lock unit can be opened by pre-registered biometric information of a user and a preset password,

The lock unit may be remotely opened by biometric information of a pre-registered user sensed by the external device unit in conjunction with the external device unit.

According to the present invention, the locking unit is a touch screen type, and includes a first locking unit for sensing biometric information and a second locking unit for sensing a preset password.

According to the present invention, the first locking unit can open the door by sensing biometric information in the form of a touch screen, and the first locking unit corresponds to the user's biometric information that is already registered and sensed by the external device. The door can be opened remotely.

According to the present invention, the second locking unit, number engraved password unit; And a sensor unit that is coupled to the password unit and senses the presence or absence of a finger position, and when the user sequentially approaches the number of the password set in the password unit in a non-contact manner according to a preset password, the sensor unit When a preset password is sensed by sensing the location of a finger, the door can be opened.

According to the present invention, the password unit is turned on at a corresponding position by sensing the position of the user's finger.

Since the door can be opened in a non-contact way, it can solve the security problem that fingerprints remain on the door lock.

In addition, since the door can be opened simply by simply touching a finger without pressing the panel, there is an effect of increasing convenience.

In addition, there is an advantage in that convenience is increased by preventing unnecessary operations to open the door.

It is possible to recognize that passwords are input sequentially, so there is an effect of reducing mistakes that occur when entering passwords.

1 shows a door lock and an external device for carrying out the present invention.
2 and 3 are shown to explain the locking method of the present invention.
Figure 4 shows unlocking the door lock through the external device of the present invention.
5 to 7 are diagrams for explaining a method of using the second locking unit.
8 is a diagram for explaining the control unit of the present invention.
9 is a block diagram showing an unlocking process according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. The longitudinal direction refers to the X axis with respect to FIG. 1 , and the width direction refers to the Y axis.

In the present invention, the non-contact smart door lock 200 is interlocked with an external device such as a smartphone to unlock the door remotely without the need to touch the finger to the panel S of the door lock 200, and the door lock 200 is not remote The door can be opened by fingerprint recognition by placing a finger adjacent to the door.

In addition, the door can be opened by sequentially inputting a password corresponding to a preset password in a non-contact manner.

To this end, referring to FIG. 1 , the present invention may include an external device unit 100 and a door lock 200 and a control unit 300 for controlling them.

The external device unit 100 can display data received from the outside, and can be used with smart phones, mobile phones, laptop computers, digital broadcasting terminals (M), personal digital assistants (PDAs), and PMPs. (portable multimedia player), navigation, tablet PC (tablet PC), ultrabook (ultrabook), wearable device (wearable device), glass type terminal (smart glass) and the like may be included.

In addition, it is desirable that software programs and applications be installed to provide services.

In addition, the external device unit 100 preferably has a display unit 110 capable of being touched.

The external device unit 100 may detect user input by including at least one of a touch sensor for detecting touch, a touch key, and an element for recognizing a user's finger pressure/electrical signal and gesture, such as a touch key and a push key.

The display unit 110 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display ( It may include at least one of a flexible display), a 3D display, an e-ink display, and a quantum dot display.

In addition, the external device unit 100 can be interlocked with the door lock 200 to remotely unlock the lock. For this purpose, referring to FIGS. 1 and 2, the external device unit 100 has software or applications embedded therein, and the door lock When it is adjacent to (200), it is possible to determine an accessor exposed to a nearby radius, and through this, it is possible to identify whether a person is able to enter or exit.

Through this, wireless communication is possible, and wireless communication is based on technical standards or communication methods for mobile communication (eg, Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), High Speed Downlink Packet (HSDPA)) Access), HSUPA (High Speed Uplink Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), etc.) signals can be transmitted and received.

In addition, short-range wireless communication can be utilized, and the short-range wireless communication unit includes a Bluetooth communication unit 320, a Bluetooth Low Energy (BLE) communication unit 320, and a near field communication unit 320 (Near Field Communication unit) , WLAN (Wi-Fi) communication unit 320, Zigbee communication unit 320, infrared data association (IrDA) communication unit 320, WFD (Wi-Fi Direct) communication unit 320, UWB (ultra wideband) communication unit 320, Ant+ communication unit 320, etc. may be included, but is not limited thereto.

After that, referring to FIG. 2 , a guide phrase is displayed on the display unit 110 of the external device unit 100 so that the fingerprint can be recognized.

Accordingly, when the user recognizes the fingerprint, the door is remotely opened and accessed.

Here, the external device unit 100 may acquire and recognize the user's biometric information, that is, the user's biometric information including at least one of the user's fingerprint information, iris information, voice information, and face information, and in the present invention, For convenience, fingerprint recognition is described, but is not limited thereto.

Therefore, there is an advantage in that convenience is increased by preventing unnecessary operations to open the door.

In addition, it is hygienic by not leaving fingerprints on the door lock 200 and has an effect of increasing security.

Referring to FIG. 3 , the door can be opened by a password input method through the external device unit 100 as well as biometric information.

In detail, in a situation where the door cannot be opened with biometric information, the door can be opened through a preset password arrangement.

When the user selects the password mode to open the door, the external device unit 100 displays the password so that the password can be input, and the user can open the door by inputting the password.

Referring to FIG. 4 , the door lock 200 according to the present invention can open the door not only by remotely opening the external device unit 100 but also by unlocking the door lock 200 .

To this end, the door lock 200 includes a locking unit, and the locking unit may be configured in a touch screen manner. For convenience of description, the locking unit will be described as the first locking unit 220 and the second locking unit 210. .

The first locking unit 220 of the locking unit may open the door by recognizing the user's biometric information.

The first locking unit 220 is formed in the form of a touch screen, and when a user's fingerprint is touched, the door is opened after determining whether it is a preset fingerprint.

At this time, the first locking unit 220 can display a fingerprint shape for fingerprint recognition, and thus the user can know the contact position of the fingerprint.

In addition, the first locking unit 220 can open the door without having the external device unit 100, and does not leave a fingerprint due to the existing password recognition due to fingerprint recognition, thereby preventing exposure to crime. there is.

In addition, since the door can be opened without memorizing the password, efficiency is increased.

In addition, there is no need to take unnecessary actions to open the door, which has the effect of increasing convenience and efficiency.

The second locking unit 210 will be described with reference to FIG. 5 .

The second locking unit 210 includes numbered password units 211, 212, and 213 and sensor units 211a, 212a, and 213a for sensing the position of a finger.

The second locking unit 210 is formed by protruding from the panel S of the door lock 200 and includes password units 211 212 213 with respective numbers engraved thereon.

The password units 211, 212, and 213 are engraved with numbers 1 to 9 and are formed to input a preset password.

Sensor units 211a, 212a, and 213a for sensing finger movements are located inside the password units 211, 212, and 213.

Here, only some reference numerals for the password unit and the sensor unit are described for convenience of explanation, and do not mean only the parts corresponding to the reference numerals described.

The password unit (211,212,213) can input the password in a non-contact manner rather than directly contacting and inputting the panel (S) of the door lock (200) to input the password of the existing door lock (200).

Referring to FIGS. 6 and 7 , the second locking part 210 is preferably formed to protrude from the panel S by a predetermined length.

That is, it is preferable that the protruded panel S and the second locking part 210 are perpendicular, and the second locking part 210 is preferably arranged in the width direction to recognize the user's hand gesture.

Therefore, it is preferable that a space is formed between the panel S and the second locking part 210 so that a finger can be adjacent to it.

At this time, the types of sensor units 211a, 212a, and 213a may be various types of sensors such as infrared sensors, Doppler sensors, and ultrasonic sensors, but are not limited thereto.

Referring to FIG. 7, the password parts 211, 212, and 213 of the second locking part 210 are adjacent to the sensor parts 211a, 212a, and 213a of the password parts 211, 212, and 213, that is, the outer surface of the password parts 211, 212, and 213 with a finger. The sensor units 211a, 212a, and 213a embedded in (211, 212, and 213) may sense the presence and position of a finger to input a password of a number corresponding to the password unit (211, 212, and 213).

At this time, the finger does not touch the panel S, and it is possible to input the password simply by bringing the user's finger adjacent to the number the user wants to input on the outside of the password unit 211, 212, 213.

Accordingly, the door may be opened by sequentially inputting a preset password.

The sensor units 211a, 212a, and 213a sense the position where the finger is located when the finger is located, input a number based on the sensed data, and open the door by comparing the input password with the previously set and stored data. can do.

Accordingly, since the door can be opened in a non-contact manner, the existing fingerprint remains in the door lock 200, thereby solving a security problem.

In addition, since the door can be opened simply by simply touching a finger without pressing the panel S, there is an effect of increasing convenience.

Referring to FIG. 5 , the password units 211 , 212 , and 213 may light up corresponding numbers engraved on the password units 211 , 212 , and 213 in correspondence to positions adjacent to the user's fingers.

In detail, if the user's finger is adjacent to the number '3', the password units 211, 212, and 213 corresponding to the number '3' are turned on.

Accordingly, when the user inputs the password, it is possible to know whether or not the password is correctly recognized, thereby increasing efficiency.

In addition, it is possible to recognize that passwords are input sequentially, thereby reducing input mistakes that occur when inputting passwords.

For example, it is possible to prevent a user from re-inputting a previously entered number and causing an error in inputting a password.

In addition, the lighting feature of the password units 211, 212, and 213 may be 'ON' or 'OFF' according to the user's intention.

Next, the present invention stores and verifies the sensing data of the external device and the door lock 200, and the control unit 300 is formed to enable mutual data exchange and control.

Referring to FIG. 8 , the control unit 300 includes a control unit 310 , a communication unit 320 and a memory unit 330 .

The controller 310, for example, drives software or a program (application) to at least one other component (eg, hardware or software component) of the non-contact smart door lock 200 of the present invention connected to the controller 310. and can perform various data processing and calculations. The control unit 310 may load and process commands or data received from other components (eg, the communication unit 320) into a volatile memory, and store resultant data in a non-volatile memory. The control unit 310 operates independently of the main control unit 310 (eg, the central processing unit or the application control unit 310), and additionally or alternatively uses lower power than the main control unit 310 or has designated functions. may include a specialized auxiliary controller 310 (eg, a graphic processing device, an image signal controller 310, a sensor hub controller 310, or a communication controller 310). Here, the auxiliary control unit 310 may be operated separately from or embedded with the main control unit 310 .

In addition, the communication unit 320 may support establishment of a wired or wireless communication channel with other devices such as a wearable device, a smart phone, or an external server, and communication through the established communication channel. The communication unit 320 may include one or more communication control units 310 that support wired communication or wireless communication operated independently. The communication unit 320 may be a wireless communication module (eg, a cellular communication module, a short-distance wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module, a local area network (LAN) communication module, or a power line communication module) can include

The memory unit 330 may store programs for processing and control of the control unit 310, and may store data input to or output from external devices (including biometric information and password information).

The memory unit 330 may be a flash memory type, a hard disk type, a multimedia card micro type, or a card type memory (for example, SD or XD memory 150). etc.), RAM (RAM, Random Access Memory) SRAM (Static Random Access Memory), ROM (ROM, Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory), magnetic It may include at least one type of storage medium among a memory, a magnetic disk, and an optical disk.

Programs stored in the memory unit 330 may be classified into a plurality of modules according to their functions. Here, the plurality of modules are software, not hardware, and mean functionally operating modules.

The UI module may provide a specialized UI, GUI, etc. that interworks with the door lock 200 and external devices for each application. The touch screen module may detect a user's touch gesture on the touch screen and transmit information about the touch gesture to the door lock 200 and the external device unit 100 . The touch screen module can recognize and analyze the touch code. The touch screen module may be composed of separate hardware including a controller.

Referring to Figure 9, the mode of operation of the present invention is explained.

First, when approaching the door lock 200 and driving the mobile phone application (S100), the user recognizes a pre-registered fingerprint or inputs a password (S200).

Alternatively, a password is input to the door lock 200 through fingerprint recognition (biometric information) or a non-contact method.

At this time, the preset biometric information and password may be previously registered in the controller 310 of the door lock 200 .

When the control unit 310 generates and recognizes the biometric information and password input to the external device (S300), the door lock 200 verifies (S400) the received authentication data (biometric information, password) and compares it with the authentication data.

Thereafter, when data verification is completed, the door is unlocked (S500) and opened.

The present invention can be recorded on a computer readable recording medium. A computer-readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions used in computer readable media, that is, coding, may not be specially configured for the present invention, but may be known and usable to those who work in the software field.

Hardware may be used in conjunction with one or more software modules to perform processing in accordance with the present invention and vice versa.

In addition, a coating layer may be included on the surface of the locking unit of the present invention to prevent damage and failure of elements caused by static electricity.

The coating layer is an antistatic layer, which can prevent the generation of static electricity and the adhesion of dust and foreign substances, and has excellent adhesion, so that the adhesion of the coating layer is excellent.

The antistatic layer is a polysiloxane represented by Formula 1; graphite; and conductive fillers:

[Formula 1]

here,

m is an integer from 1 to 100;

p is an integer from 3 to 10;

R1 to R3 are the same as or different from each other, and are each independently selected from the group consisting of hydrogen, heavy hydrogen, a hydroxyl group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 30 carbon atoms,

The substituted alkylene group, the substituted arylene group, the substituted alkyl group and the substituted aryl group are hydrogen, deuterium, cyano group, nitro group, halogen group, hydroxyl group, alkyl group having 1 to 30 carbon atoms, cycloalkyl group having 1 to 20 carbon atoms, Alkenyl group having 2 to 30 carbon atoms, alkynyl group having 2 to 24 carbon atoms, aralkyl group having 7 to 30 carbon atoms, aryl group having 6 to 30 carbon atoms, heteroaryl group having 5 to 60 nuclear atoms, heteroarylalkyl group having 6 to 30 carbon atoms , C1 to C30 alkoxy group, C1 to C30 alkylamino group, C6 to C30 arylamino group, C6 to C30 aralkylamino group, C2 to C24 heteroarylamino group, C1 to C30 alkylsilyl group, an arylsilyl group having 6 to 30 carbon atoms, and an aryloxy group having 6 to 30 carbon atoms, and is substituted with one or more substituents selected from the group consisting of a plurality of substituents, which are the same as or different from each other.

More preferably, the compound represented by Formula 1 may be a compound represented by Formula 2 below:

[Formula 2]

Here, m and p are as defined in Formula 1 above.

The graphite is included in a small amount, so that the antistatic effect in the antistatic layer can be continuously maintained. Considering that graphite is an expensive conductive filler, it is included in a small amount in the antistatic layer in the present invention, so that a continuous antistatic effect can be maintained.

The conductive filler may be selected from the group consisting of silica, alumina, and mixtures thereof, but is preferably alumina, but is not limited to the above examples. The particle diameter of the conductive filler is 30 to 50 μm, but is not limited to the above example. The conductive filler may exhibit electrical conductivity.

More specifically, the antistatic layer of the present invention is polysiloxane represented by Formula 1; Including graphite and a conductive filler, it may exhibit an antistatic effect. The polysiloxane is divided into a hydrophilic part and a hydrophobic part. The hydrophilic portion is capable of hydrogen bonding with water molecules by an oxygen atom containing an unshared pair of electrons.

On the other hand, the alkyl group acts as a hydrophobic group. Therefore, the hydrophilic portion is located on the surface of the antistatic layer, and the hydrophobic portion is located in the opposite direction, so that a semi-permanent antistatic effect can be exhibited.

The antistatic composition for forming the antistatic layer is polysiloxane represented by Formula 1; graphite; It can be prepared by mixing a conductive filler and an organic solvent.

The organic solvent may be selected from the group consisting of ethanol, methanol, butanol, hexane, propane, toluene, phenol, and mixtures thereof.

Preferably, the antistatic composition may include 40 to 80 parts by weight of the polysiloxane represented by Formula 1, 5 to 10 parts by weight of graphite, and 30 to 50 parts by weight of the conductive filler, based on 100 parts by weight of the organic solvent.

In the case of preparing an antistatic composition including parts by weight within the above range, an antistatic effect more than a simple combination may appear due to the interaction of the components constituting the composition.

More preferably, the antistatic composition for forming the antistatic layer is polysiloxane represented by Formula 1; graphite; conductive filler; It can be prepared by further including a natural extract in an organic solvent.

The natural extract may be selected from the group consisting of individual flower extracts, persimmon extracts, alfalfa extracts, and mixtures thereof.

The individual flower (Krascheninikovia coreana Nakai) is a perennial plant of the dicotyledonous plant centroleaceae, also called lunatic grass and island individual flower, grows in oak forest or its edge, leaves are opposite, and the upper leaves are especially It is not enlarged and is inverted lanceolate, 10-40mm long, 2-4mm wide, sharp-headed, and the lower part narrows to look like a petiole. Flowers bloom in May, peduncles are 2-3cm long, hairs grow in rows on one side, and one white flower runs upward. There are 5 sepals and 5 petals, inverted egg shape, 6mm long, round or dull truncated. There are 10 stamens, anthers are yellow, and there is a style divided into 3 in the ovary, and several closed flowers hang close to the ground, and there is a stem. Capsules are egg-shaped and divided into 3 to produce fine seeds. The main stem comes out by 1-2 pieces, is 8-12cm high, has hairs in a row, and is thin, long, and stands straight. Fusiform tuberous roots run 1-2 each. The root is called taejasam.

The dog persimmon (Lloydia serotina (L.) Rchb.) is a perennial plant of the monocotyledonous lily lily family, also called wapanhwa, dumemuru, and mountain, grows on rocky ground in high mountains, and usually has two root leaves. The length is 7~20cm, the width is about 1mm, and it is linear. Stem leaves are 2-4, linear, 4-35mm long, dull at the end, with curled up edges, and the upper ones are smaller. The scape is 7-15cm long, with 2-4 leaves. Flowers bloom in July, look like wide bells, 10-13mm long, 1.5cm in diameter, 6 sepals, almost similar, long oval, white, but the veins on the back sometimes turn purple. There are 6 stamens, about 1/2 the length of the perianth, and the anther is elliptical and attaches to the filament downward. The ovary is elliptical, and the style is 2-2.5mm long, shorter than the ovary, and the stigma is faintly divided into 3 pieces. It is a capsule, brown, 6-7mm long, and has a wide inverted egg shape. The scale stem is columnar and the outer skin is light yellowish brown.

The alfalfa (Medicago sativa L.) is a perennial plant of the dicotyledonous plant Rosemary leguminous family, also called alfalfa, distributed in the northern and central parts of the Korean Peninsula, the leaves are alternate, pinnate 3 leaves, and the lobules are lanceolate or long oval, The tip of the main vein is sharp, the lower part is acute, 2-3cm long, 6-10mm wide, with fine sawtooth on the upper edge, almost no hairs on the upper side, and hairs on the back side. The leaves are lanceolate and the edges are flat. Raceme is axillary, has scape, flowers bloom in July-August, sphenoid flowers are 7-8mm long, light purple, and bracts are needle-shaped. The calyx is 5-6mm long, and the lobe is bell-shaped and longer than pantong. Legumes are spirally rolled 2-3 times, hairy, and contain several seeds. Seeds are new, small and yellowish brown. Stems grow upright or obliquely, and many branches diverge. It has little hair and is hollow inside. The main root is columnar and grows deep into the ground.

Preferably, the antistatic composition contains 40 to 80 parts by weight of the polysiloxane represented by Formula 1, 5 to 10 parts by weight of graphite, 30 to 50 parts by weight of a conductive filler, and 5 to 10 parts by weight of an individual flower extract, based on 100 parts by weight of an organic solvent. 5 to 10 parts by weight of persimmon extract and 1 to 5 parts by weight of alfalfa extract.

In the case of the above range, the antistatic synergistic effect due to the interaction of each component is further slightly improved, and when out of the above range, the antistatic effect may be insignificant or not improved.

More preferably, the viscosity of the antistatic composition is 1,200 to 1,500 cP, and when the viscosity is less than 1,200 cP, there is a problem that it is not easy to form an antistatic layer because it flows down when coated on one surface, and when it exceeds 1,500 cP There is a problem that it is not easy to form a uniform antistatic layer.

[Preparation Example 1: Preparation of antistatic coating layer]

1. Preparation of coating composition

An antistatic composition was prepared by mixing a polysiloxane represented by Formula 2, a conductive filler, and graphite in an organic solvent in which toluene and phenol were mixed in a weight ratio of 1:1:

[Formula 2]

Here, m is an integer of 10 to 30, and p is an integer of 3 to 5.

A more specific composition of the antistatic composition is shown in Table 1 below.

SC1 SC2 SC3 SC4 SC5 SC6 organic solvent 100 100 100 100 100 100 polysiloxane 20 30 40 60 80 100 alumina 10 20 30 40 50 60 graphite One 3 5 7 10 15

(Parts by unit weight) The alumina has a particle diameter of 30 to 50 μm.

2. Preparation of coating layer

After applying the antistatic composition of SC1 to SC6 on the surface of the lock unit, it was heat-cured to form an antistatic layer (coating layer).

[Experimental Example 1: Antistatic effect test by coating layer]

1. Viscosity measurement

Before forming the antistatic layer on the surface of the lock unit, the viscosity of the antistatic composition was measured. Viscosity was measured using a rheometer (Rheometer, Compac-100, Sun Sci. Co., Japan). The viscosity measurement results are shown in Table 2 below.

SC1 SC2 SC3 SC4 SC5 SC6 Viscosity (cP) 620 800 1250 1350 1500 2000

(Unit: cP) 2. Surface electrical resistance measurement

The surface electrical resistance of the coating layer formed with the antistatic layer of SC1 to SC6 on one surface of the locking unit was measured using a Resistance Meter SIMCO ST-4 (25° C., 50% relative humidity).

As a comparative example, the surface electrical resistance was also measured on the surface of the locking unit (Comparative Example 1) on which the antistatic layer was not formed. The results are shown in Table 3 below.

Comparative Example 1 SC1 SC2 SC3 SC4 SC5 SC6 surface electrical resistance
(Ω/cm ² ) 7.4Х10 ¹⁰ to
1.6×10 ¹² 6.4Х10 ⁹ to
1.4×10 ¹⁰ 1.4Х10 ⁹ to
1.6×10 ¹⁰ 7.2Х10 ⁸ to
6.1×10 ⁹ 4.4Х10 ⁷ to
2.1×10 ⁸ 6.5Х10 ⁷ to
4.5×10 ⁸ 5.8Х10 ⁸ to
7.8×10 ⁸

(Unit: Ω/cm ² ) Compared to the comparative example in which the antistatic layer is not formed, since the surface electrical resistance of SC1 to SC6 is low, the electrical conductivity is excellent, and it can be confirmed that the excellent antistatic effect appears.

3. Evaluation of surface appearance

Due to the difference in viscosity of the antistatic composition, after preparing the coating layer, sensory evaluation was conducted on whether a uniform surface was formed. Evaluation was conducted on whether or not a uniform coating layer was formed, and the evaluation was conducted according to the following criteria, and the results are shown in Table 4 below.

○: uniform coating layer formation

×: Formation of non-uniform coating layer

SC1 SC2 SC3 SC4 SC5 DY6 sensory evaluation Х Х ○ ○ ○ Х

As a result, when the coating layer is formed, flow occurs on the surface of the mirror when the viscosity is less than a certain level, and it is difficult to form a uniform coating layer in many cases. Accordingly, a problem of lowering the production yield may occur. In addition, even when the viscosity is too high, it is difficult to uniformly apply the composition and it is impossible to form a uniform coating layer.

In addition, when the antistatic composition includes 40 to 80 parts by weight of the polysiloxane represented by Formula 2, 30 to 50 parts by weight of the conductive filler, and 5 to 10 parts by weight of graphite, based on 100 parts by weight of the organic solvent, the mutual It can be seen that the antistatic synergistic effect by the action is excellent.

[Preparation Example 2: Preparation of antistatic coating layer containing natural extract]

After preparing a natural extract to check whether the antistatic effect of the antistatic composition was increased or decreased by including the natural extract, the antistatic composition was prepared by adding the natural extract to the SC4 composition, which had the best antistatic effect in Experimental Example 1. did

1. Preparation of individual flower extracts

After washing and drying the individual flower leaves, they were pulverized with a blender to prepare a powder. The powder sample was immersed in 30% ethanol as an extraction solvent, left at room temperature for 24 hours, and then the process of obtaining an extract was repeated twice. The obtained extract was filtered under reduced pressure with Whatman No. 2 filter paper, and the filtered extract was concentrated using a vacuum rotary evaporator to obtain an individual flower extract (PE) from which solvent components were removed.

2. Preparation of other natural extracts

Using the same method as the manufacturing method of the individual flower extract (PE), persimmon extract (LE) and alfalfa extract (ME) were prepared.

3. Preparation of coating composition

It was prepared in the same manner as in Preparation Example 1, and an antistatic coating layer was prepared with the composition shown in Table 5 below, further including a natural extract.

SC7 SC8 SC9 SC10 SC11 organic solvent 100 100 100 100 100 polysiloxane 60 60 60 60 60 alumina 40 40 40 40 40 graphite 7 7 7 7 7 Individual flower extract (PE) One 3 5 7 10 Persimmon extract (LE) One 3 5 7 10 Alfalfa Extract (ME) 0.1 0.5 One 3 5

(unit weight parts)

4. Preparation of the coating layer

After applying the antistatic composition (SC7 to SC11) on one surface of the lock unit, it was thermally cured to form an antistatic layer (coating layer).

[Experimental Example 2: Antistatic effect test by coating layer containing natural extract]

For the coating composition prepared in Preparation Example 2, viscosity measurement evaluation, surface electrical resistance measurement evaluation, and surface appearance were evaluated in the same manner as in Experimental Example 1, and the results are shown in Tables 6 to 8 below. .

viscosity measurement

The viscosity measurement results are shown in Table 5 below.

SC7 SC8 SC9 SC10 SC11 Viscosity (cP) 1250 1300 1370 1450 1490

(Unit: cP) Surface electrical resistance measurement

For the coating layer on which the antistatic layer of SC7 to SC11 is formed on the surface of the lock unit, the surface electrical resistance was measured using a Resistance Meter SIMCO resistor ST-4 (25 ° C, 50% relative humidity), and as a comparative example, the above Experimental Example 1 The surface electrical resistance of SC4 was set to 5, and the surface electrical resistance of SC7 to SC11 was represented by 1 to 10. The higher the index value, the higher the surface electrical resistance.

SC4 SC7 SC8 SC9 SC10 SC11 surface electrical resistance
(Ω/cm ² ) 5 4 3 2 2 4

(Unit: Ω/cm ² ) According to Table 6, it was confirmed that the measured surface electrical resistance values of SC7 to SC11 were lower than the surface electrical resistance values of SC4, and exhibited excellent antistatic effect due to high electrical conductivity. In particular, in the case of SC8 to SC10 containing a preferred weight part of the natural extract, it was confirmed that the surface electrical resistance value was lower and the electrical conductivity was better than the antistatic effect.

Surface appearance evaluation

Due to the difference in viscosity of the antistatic composition, after preparing the coating layer, sensory evaluation was conducted on whether a uniform surface was formed. Evaluation was conducted on whether or not a uniform coating layer was formed, and the evaluation was conducted according to the following criteria, and the results are shown in Table 8 below.

○: uniform coating layer formation

×: Formation of non-uniform coating layer

SC7 SC8 SC9 SC10 SC11 sensory evaluation ○ ○ ○ ○ ○

According to Table 8, it was confirmed that a uniform coating layer was formed on one surface of the lock unit when the viscosity was within the range of 1200 cP to 1500 cP.

As a result, it was confirmed that a non-uniform coating layer was formed when the viscosity was less than or exceeded a certain level during formation of the coating layer, and in the case of SC7 to SC11, which are antistatic coating compositions containing natural extracts, evaluation of viscosity, surface electrical resistance and surface appearance All were excellent, and it was confirmed that the antistatic effect of the coating composition was further improved when a preferred weight part of the natural extract was included.

That is, the antistatic composition containing the natural extract contains 40 to 80 parts by weight of the polysiloxane represented by Formula 2, 30 to 50 parts by weight of the conductive filler, 5 to 10 parts by weight of graphite, and individual flowers, based on 100 parts by weight of the organic solvent. In the case of SC8 to SC10 containing 5 to 10 parts by weight of extract, 5 to 10 parts by weight of persimmon extract and 1 to 5 parts by weight of alfalfa extract, it can be seen that the antistatic synergistic effect due to the interaction of each component is excellent.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also made according to the present invention. falls within the scope of the rights of

100: external device unit,
110: display unit,
200: door lock,
210: second locking unit,
211,212,213: password part,
211a, 212a, 213a: sensor unit,
220: first locking unit,
300: control unit,
310: control unit,
320: communication department,
330: memory unit,
S: Panel.

Claims (5)

door lock;
An external device unit interlocked with the door lock;
Doedoe formed in the door lock, the lock unit for identifying the biometric information and password of the pre-registered user; and
A control unit controlling the external device unit and the door lock;
The lock unit can be opened by pre-registered biometric information of a user and a pre-set password,
The lock unit may be remotely opened by biometric information of a pre-registered user sensed by the external device unit in conjunction with the external device unit,
The lock unit is a touch screen type,
A first locking unit for sensing biometric information; and
Including; a second locking unit for sensing a preset password;
The first locking unit may open the door by sensing biometric information in the form of a touch screen,
The first locking unit may remotely open a door in response to biometric information of a pre-registered user sensed by the external device unit,
The second locking part,
numbered password unit; and
Doedoe combined with the password unit, a sensor unit for sensing the presence or absence of a finger position; includes,
When the user approaches the number of the preset password in the password unit sequentially in a non-contact manner according to the preset password, the sensor unit senses the position of the finger to open the door when the preset password is sensed,
The password unit senses the position of the user's finger and is turned on at the corresponding position,
Characterized in that a coating layer is formed on the surface of the locking unit,
The coating layer is formed using a coating composition and exhibits an antistatic effect,
The coating composition is a polysiloxane represented by Formula 1; conductive filler; graphite; and an organic solvent
Contactless Smart Door Lock:
[Formula 1]

Here, m is an integer from 1 to 100,
p is an integer from 3 to 10;
R1 to R3 are the same as or different from each other, and are each independently selected from the group consisting of hydrogen, heavy hydrogen, a hydroxyl group, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 30 carbon atoms,
The substituted alkylene group, the substituted arylene group, the substituted alkyl group and the substituted aryl group are hydrogen, deuterium, cyano group, nitro group, halogen group, hydroxyl group, alkyl group having 1 to 30 carbon atoms, cycloalkyl group having 1 to 20 carbon atoms, Alkenyl group having 2 to 30 carbon atoms, alkynyl group having 2 to 24 carbon atoms, aralkyl group having 7 to 30 carbon atoms, aryl group having 6 to 30 carbon atoms, heteroaryl group having 5 to 60 nuclear atoms, heteroarylalkyl group having 6 to 30 carbon atoms , C1 to C30 alkoxy group, C1 to C30 alkylamino group, C6 to C30 arylamino group, C6 to C30 aralkylamino group, C2 to C24 heteroarylamino group, C1 to C30 alkylsilyl group, an arylsilyl group having 6 to 30 carbon atoms, and an aryloxy group having 6 to 30 carbon atoms, and is substituted with one or more substituents selected from the group consisting of a plurality of substituents, which are the same as or different from each other. delete delete delete delete

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