KR102308522B1 - Smart door lock - Google Patents

Abstract

The present invention relates to a smart door lock, and relates to a user-portable input unit, a sensor unit for sensing the input unit, a locking unit for driving door opening and locking, and identification for identifying biometric information and recognized biometric information of a previously registered user A unit, coupled to the door, including an LED unit and a sensor unit, a lock unit, an identification unit, and a control unit for controlling the LED unit that light is turned on, and only when the sensor unit senses an input unit close to the door, the identification unit It is driven and identifies whether the user's biometric information is already registered, but the LED unit is lit only when the sensor unit senses the input unit and when the biometric information recognized by the identification unit is the biometric information of the previously registered user, the LED unit It can be removed from the silver door, so it is easy to replace the LED unit.

Description

Smart door lock {SMART DOOR LOCK}

The present invention relates to a smart door lock. More specifically, a user-portable input unit, a sensor unit for sensing the input unit, a locking unit for driving door opening and locking, an identification unit for identifying the biometric information of a previously registered user and recognized biometric information, coupled to the door However, it includes an LED unit and a sensor unit, a lock unit, an identification unit, and a control unit for controlling the LED unit, where the light is turned on, and only when the sensor unit senses an input unit close to the door, the identification unit is driven and registered However, the LED unit is lit only when the sensor unit senses the input unit and the biometric information recognized by the identification unit is the registered user's biometric information, and the LED unit can be removed from the door. possible. For this reason, there is an advantage in that the replacement of the LED unit is easy.

In the case of mechanical door locks, since it is inconvenient to carry a key, electric-operated door locks that can open the door by inputting a password or fingerprint are widely used in recent years.

An electrically operated door lock is generally composed of a main body that can input a number, an outer lever connected to the main body, and an inner lever, and the main body has a built-in circuit board that can electrically control the lock of the door lock.

The conventional electrically operated door lock performs a simple function of generating an electric signal for unlocking when the input password matches. That is, the conventional door lock system is simply used only to crack down on the entrance and is not used for crime prevention.

Recently, in a situation where the number of women living alone is increasing due to the increase of single-person households, the blind spots of these door locks can expose not only property damage but also physical risks, which is a very serious social problem. have.

In order to solve this problem, a separate crime prevention system must be configured, but in a private house, particularly, a studio for single-person households, there is a problem in that it is practically impossible to build an expensive crime prevention system for each room.

To this end, the development of an electrically operated door lock equipped with an LED or a voice generating function in order to inform the user or the outside of the danger is being actively developed.

However, since the sensor, the control device, etc. are built-in and driven in the door lock, it is difficult for the user to directly replace it, and the use thereof is not continuously used, so there is a problem that the security effect is insufficient.

Therefore, it is necessary to develop a device that maximizes simplification and ease of management in order to continuously use the function to inform the outside of danger by adding LED and voice functions at the same time as the conventional problems of easy password exposure and weak security. .

KR 10-2014-0020545 A

An object of the present invention is to induce easy replacement by enabling the removal of the LED unit of the smart door lock. To this end, a user-portable input unit, a sensor unit for sensing the input unit, a locking unit for driving the door opening and locking, an identification unit for identifying the biometric information of a previously registered user and the recognized biometric information, is coupled to the door , including a control unit for controlling an LED unit and a sensor unit, a lock unit, an identification unit, and an LED unit on which the light is turned on, and only when the sensor unit senses an input unit close to the door, the identification unit is driven and registered Identifies the user's biometric information, but the LED unit is lit only when the sensor unit senses the input unit and the biometric information recognized by the identification unit is the previously registered user's biometric information, and the LED unit can be removed from the door do.

In order to achieve the above object, a smart door lock according to the present invention is a user-portable input unit; a sensor unit sensing the input unit; a locking unit for driving the door opening and locking; an identification unit that identifies the previously registered user's biometric information and the recognized biometric information; Doedoe coupled to the door, the light is lit LED unit; and a control unit for controlling the sensor unit, the lock unit, the identification unit, and the LED unit, wherein only when the sensor unit senses the input unit close to the door, the identification unit is driven to Identifies whether it is biometric information of a registered user, but the LED unit is lit only when the sensor unit senses the input unit and when the biometric information recognized by the identification unit is biometric information of a previously registered user, the LED The unit is removable from the door.

According to the present invention, when the sensor unit senses the input unit, the first control unit transmits a first signal, but the first lock unit is released to drive the identification unit, and the biometric information recognized by the identification unit is displayed. When the biometric information of the previously registered user is matched, the second control unit transmits a second signal, and the second lock unit is released to open the door.

According to the present invention, when the identification of whether the biometric information recognized by the identification unit is the biometric information of a previously registered user exceeds three times, the LED unit is turned on.

According to the present invention, the sensor unit, the sensor unit for determining whether the proximity of the input unit; And a notification unit having a notification function; provided with, the notification unit is driven together with the LED unit.

According to the present invention, the sensor unit identifies the input unit with a beacon function.

According to the present invention, the identification unit is driven based on the biometric information recognition module.

According to the present invention, the LED unit comprises: an AC converter circuit; DC converter circuitry; a frame part having a first frame part accommodating the AC converter circuit part and a second frame part accommodating the DC converter circuit part; and a connection part connecting the first frame part and the second frame part, wherein the opening and closing of the first frame part and the second frame part are repeated by the connection part.

According to the present invention, the input unit, the user's eyes; and a portable smart key; the smart key is one of a mobile phone, a smart phone, a smart pad, a notebook computer, and a smart band.

According to the present invention, the coating layer is formed along the outer surface of the frame portion.

According to the smart door lock of the present invention, when the first signal is transmitted by the first control unit, it means that the LED unit has completed the primary identification. After being lit, the control unit drives the identification unit so that the second control unit sends the second signal By sending a message, the door can finally be opened by releasing the second lock, and at the same time, the LED unit is turned on secondarily to inform the user of the opening of the door. there is

In addition, the identification unit stores the biometric information recognized by the biometric information recognition module in the memory of the user terminal, transmits it to the door lock device, determines that the user can enter and opens the door, so that the user does not need to press a password or use a key Therefore, convenience can be increased, and since the door can be opened only when user biometric information authentication is completed, security for the access security system can be increased.

In addition, when the user replaces the parts (such as the AC converter circuit part) in the first frame part and the second frame part, unfold the first frame part and the second frame part to replace only the corresponding parts, and again the first frame part and the second frame part Since the frame part can be built-in or combined with the door by folding it, residents and users, not workers, can directly replace it, thereby increasing the convenience of the device.

In addition, in the present invention, since the first frame part and the second frame part are foldable, the AC converter circuit part and the DC converter circuit part are also coupled and separated, respectively. For this reason, unlike the conventional circuit board, the cross-sectional area is reduced to 1/2, so that the miniaturization of the converter can be constructed.

1 illustrates a state in which a frame unit, a lamp unit, a camera unit, and an LED unit are combined according to the present invention.
2 is a block diagram according to the present invention.
3 is a block diagram for carrying out the steps according to the present invention.
Figure 4 shows a state in which the frame according to the present invention is matched.
5 is a view showing an unfolded state of the frame unit according to the present invention.
6 is a view showing a converter circuit part built in the frame part according to the present invention.
7 is an exploded view of the box according to the present invention.
8 is a block diagram according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein.

The terminology used herein is for the purpose of describing the embodiments, and thus is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprise” and/or “comprising” refers to the presence of one or more other components, steps, operations and/or elements mentioned. or addition is not excluded.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and when described with reference to the drawings, the same or corresponding components are given the same reference numerals, and the overlapping description thereof will be omitted. .

The smart door lock according to the present invention includes an input unit 100, a sensor unit 200, a lock unit 300, a frame unit 400, a connection unit 500, a converter circuit unit 600, a diagnosis unit 700, It includes a lamp unit 800 , a camera unit 900 , and an LED unit 1000 .

The input unit 100 includes a smart key 110 and the user's eyes 120 .

The smart key 110 includes a smart ECU, a receiver, an indoor antenna, an outdoor antenna, and the like. In addition, the smart key 110 may be a portable device. It includes various terminals capable of running a service application. The smart key 110 is a mobile phone, a smart phone, a smart pad, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), a navigation (Navigation) ), tablet PCs, smart watches, and various wearable devices such as smart bands. However, the present invention is not limited thereto, and may be various types of devices capable of driving a communication function capable of wireless communication, a smart lock device, and a separate application capable of executing a security service.

The sensor unit 200 is built into the door 1 , and includes a sensor unit 210 and a notification unit 220 . The sensor unit 210 senses the smart key 110 of the user who has entered the radius of the door 1 .

That is, the sensor unit 210 determines whether the smart key 110 is in proximity.

At this time, it is preferable that the sensor unit 210 determines that the smart key 110 is close when the smart key 110 enters within a preset specific range.

In addition, in detail, the sensor unit 210 in the present invention may be implemented as a beacon function.

In detail, the sensor unit 210 can determine an accessor exposed in a radius near the door 1 through a beacon function, and can primarily identify whether or not a person can enter through this. do.

The Beacon function is a wireless communication device that can automatically recognize a smart device in a short distance and transmit necessary data. Also called a Bluetooth Beacon, it is a wireless communication device that can It can be used to transmit a Received Signal Sterangth Indicator (RSSI) value or to use a previously known output signal strength and signal strength of a beacon when estimating a location inside a specific building.

Therefore, the user who wants to enter and exit can continuously send a signal to the sensor unit 210 with the UUID unique identifier through the beacon function of the application installed on the smart key 110 while entering the vicinity of the door 1, and the sensor unit ( 210) detects and recognizes this to determine whether a person can enter or exit.

Also, the notification unit 220 sounds an alarm when the smart key 110 enters a specific range of the sensor unit 210 . Due to the configuration of the notification unit 220 , the user may recognize that the smart key 110 may come into the range of the sensor unit 210 and release the first lock unit 310 , which will be described later. Due to this, there is an advantage in that the probability of a malfunction is lowered and the convenience is increased by preventing unnecessary operation.

When the sensor unit 210 of the sensor unit 200 senses the smart key 110 and determines that the smart key 110 approaches the sensor unit 210, it sends a first signal to the first control unit C1 to be described later. transmit In the present invention, the first signal is a signal for informing that the smart key 110 is in a state in which the first locking unit 310 may be released in proximity to the sensor unit 210 . A detailed description thereof will be provided later.

In addition, when the sensor unit 210 senses the smart key 110 , the LED unit 1000 may be turned on in the sense that the primary identification is completed.

The LED unit 1000 is coupled to the door 1 so as to be lit toward the outside.

As an example, the sensor unit 210 senses the smart key 110 and transmits a first signal to the first control unit C1 to be described later, and at the same time the LED unit 1000 is also primarily lit to provide the user with primary identification. It may imply completion, for example, may be green, and may be lit for 2 seconds or more. However, the present invention is not limited thereto, and it may be appropriately designed by a person having ordinary knowledge to enable setting by the user.

Next, secondary identification may be performed by the identification unit 900 .

The identification unit 900 may acquire and recognize the user's biometric information including at least one of the user's fingerprint information, iris information, voice information, and face information. To this end, the identification unit 900 may include a biometric information sensing module (not shown) that outputs a signal related to biometric information.

Therefore, the identification unit 900 of the present invention can be driven by the control unit (C) after the sensor unit 210 senses the smart key 110 and the primary identification is completed, and is located inside the door (1). A biometric information recognition program for recognizing biometric information may be installed, and the biometric information may be recognized by driving the biometric information recognition program.

In detail, a fingerprint sensor, a microphone, and a camera may be coupled to a door lock coupled to the interior of the door 1 or a part of the door 1, and the user's fingerprint information input through the fingerprint sensor is recognized as biometric information. The user's voice information input through the microphone may be recognized as biometric information, and iris information or face information of the user photographed through the camera may be recognized as biometric information.

Therefore, at the same time that the first signal is transmitted by the first control unit (C1), the LED unit 1000 means that the primary identification is completed and is turned on, then the control unit (C) drives the identification unit (900) to For example, the biometric information of the registered user and the identified face of the user are determined, and the second control unit C2 transmits a second signal to release the second lock unit 320 and finally the door (1). This can be opened, and at the same time, the LED unit 1000 is secondarily lit to inform the user of the opening of the door (1).

To this end, the identification unit 900 stores the biometric information recognized by the biometric information recognition module in the memory of the user terminal (not shown), so that the user who has entered the biometric information can be registered as a user who can open the door, and generates The registered value is transmitted to the door lock device to determine that the user can enter and exit, and can drive the opening of the door (1).

In this way, since the user does not need to press a password or use a key, convenience can be increased, and the door 1 can be opened only when user biometric information authentication is completed, so the security of the access security system can be improved. can be increased

In addition, since the door 1 is opened through the double identification operation based on the user's information, the security is further increased, and at the same time, the user can hint the progress by lighting the LED unit 1000, thereby increasing the convenience. do.

With reference to FIG. 2, the step of progressing whether the smart door lock enters or exits according to the present invention will be described.

First, in a step S101 whether the sensor unit detects the proximity of the smart key within a specific range, the sensor unit 210 senses the user's smart key 110 who has entered the radius of the door 1 to perform primary identification. be able to do In order to prevent a duplicate description of this, a detailed description thereof will be omitted.

Accordingly, in the step of releasing the first locking unit (S102), as the smart key 110 of the user of the sensor unit 210 is sensed and identified, the first control unit C1 transmits a first signal to the first lock unit (310) can be released.

Next, in the LED primary lighting (S103) step, the LED unit 1000 at the same time as the release of the first lock 310 is the primary lighting. Accordingly, the user can immediately recognize that the current primary identification has been completed.

Next, in the step of whether the biometric information recognized by the identification unit is the same as the biometric information of the registered user (S104), after the first identification, the biometric information of the user registered by the identification unit 900 and the recognized biometric information are identified This makes it possible to determine whether a person can double-entry. This is to omit the detailed description in order to prevent a duplicate description of the above-described content.

Accordingly, in the step of unlocking the second locking unit (S105), according to the determination of whether or not the user's biometric information is registered by the identification unit 900, the second control unit C2 transmits a second signal to lock the second The unit 320 is released.

Next, in the LED secondary lighting (S106) step, at the same time as the release of the second locking unit 320, the LED unit 1000 turns on the secondary lighting, and may be of a different color from the secondary lighting, and is lit in a different way. can be Accordingly, the user recognizes that the secondary identification has been completed, and can respond to the door 1 being opened.

At this time, in the present invention, if the biometric information recognized by the identification unit is the same as the registered user's biometric information (S104), when the registered user's biometric information and the recognized biometric information do not match, the LED primary lights up again (S103) ), which has the characteristic that the number of entries can be limited to 3 times.

In other words, the number of times the identification unit 900 recognizes the biometric information and identifies it with the registered user's biometric information is limited to 3 or less, and when it exceeds 3 times, the LED unit lights up and the notification unit is driven (S107) In the process, it is possible to immediately notify the user and outsiders that it is an emergency.

Here, the notification unit 220 and the LED unit 1000 may be interlocked with the management room in the building, and according to the setting of the installed application of the smart key 110, outsiders (acquaintances, neighbors, security guards, security company employees, police and firefighters) etc.) so that it can be linked (for example, an automatic connection function of voice calls with an alarm sound for a certain period of time, etc.) to induce a quick response to a dangerous situation. Such electrically controlled driving may be designed and changed by a person skilled in the art.

Therefore, there is an effect that sufficient security and crime prevention can be dealt with with a low-cost device even for a residential area vulnerable to crime prevention and for single-person households.

In addition, in the step (S101) of determining whether the sensor unit is close to the smart key within a specific range according to the present invention, as another embodiment, the sensor unit first locks through the reference distance between the user's eyes 120 and the smart key 110 It allows the unit 310 to be released.

In detail, the reference distance according to the present invention may be a vertical distance between the user's eyes 120 and the user's pocket where the smart key 110 is located in FIG. 1 .

Accordingly, the sensor unit 210 identifies the positions of the eyes 120 and the smart key 110 when the user arrives within a specific range from the door 1, calculates the vertical distance (reference distance) thereof, and is less than or equal to the set value. , the first locking unit 310 may be released. For example, when the resident of a single-person household is a woman, it can be determined that the person is a woman based on the short vertical distance between the eyes and the pelvis of a normal man, and when the value is greater than the set value, it can be determined that the person is a man, thereby improving security. . Here, the value at which the reference distance is initially set according to the positions of the user's eyes 120 and the smart key 110 may be set by the user, and may be limited to more than, less than, or within a specific range.

As such, it is possible to improve the effectiveness of security and crime prevention by specifically limiting the initial setting value for primary identification.

At this time, according to the present invention, the LED unit 1000 that is lit with different colors according to the primary identification and the secondary identification is independently built in the door 1 in the present invention, and is characterized in that it is easy to replace.

Hereinafter, referring to FIGS. 3 and 4 in order to describe the operation of the LED unit 1000 in detail.

The frame unit 400 includes a first frame portion 410 and a second frame portion 420 .

The first frame part 410 is preferably in the form of a box with an open upper surface. An AC converter circuit unit 610 is coupled to the upper surface of the first frame unit 410 .

Likewise, it is preferable that the second frame part 420 has a box shape with an open upper surface. More preferably, the shapes of the first frame part 410 and the second frame part 420 are the same. For this reason, the first frame portion 410 and the second frame portion 420 can be matched when they are folded and brought into contact with each other, so there is an advantage of miniaturization, and there is an advantage in that a protruding portion is not generated, thereby reducing the risk of damage.

At this time, it is preferable that the first frame part 410 and the second frame part 420 are spaced apart from each other by a predetermined distance, and the spaced apart first frame part 410 and the second frame part 420 are connected to the connecting unit ( 500) will follow. As described above, since the first frame part 410 and the second frame part 420 are spaced apart from each other by a predetermined distance, the first frame part 410 or the second frame part 420 can be folded and abutted. .

As shown in FIG. 3 , the connection unit 500 includes a first connection part 510 provided as a pair and a second connection part 520 connecting an AC converter circuit part 610 and a DC converter circuit part 620 to be described later.

The first connection part 510 connects the first frame part 410 and the second frame part 420 . Referring to FIG. 4 in more detail, the first connection part 510 includes a first bar part 511 , a second bar part 512 , a first joint part 513 , a second joint part 514 , and a second joint part 514 . 3 A joint portion 515 is provided.

The first bar part 511 is formed to extend in the longitudinal direction, and is located at an end of the first frame part 410 adjacent to the second frame part 420 .

The second bar part 512 is formed to extend in the longitudinal direction, and is located at an end of the second frame part 420 adjacent to the first frame part 410 .

The first joint part 513 serves as a joint for simultaneously passing through and connecting the first frame part 410 and the first bar part 511 . Similarly, the second joint portion 514 passes through the second frame portion 420 and the second rod portion 512 at the same time, and the third joint portion 515 includes the first rod portion 511 and the second rod portion. It passes through the portion 512 at the same time.

As described above, as the first joint part 513 to the third joint part 515 are formed, the first bar part 511 and the second bar part 512 can tilt operation, and thus, the first The frame part 410 and the second frame part 420 may be folded and matched as shown in FIG. 3 .

In addition, the first connection part 510 is provided as a pair spaced apart from each other at a predetermined interval in the width direction, so that the supporting force connecting the first frame part 410 and the second frame part 420 is increased and repeated folding. There is an advantage in that the lifespan is increased even in the operation and unfolding operation.

In addition, when the user replaces the components (such as the AC converter circuit unit 610) in the first frame unit 410 and the second frame unit 420, the first frame unit 410 and the second frame unit 420 The device can be replaced by a resident and a user, not a worker, because only the corresponding parts are replaced, and the first frame part 410 and the second frame part 420 are folded again to be built-in or combined in the door 1 . It has the advantage of increasing the convenience of

The configuration and effects of the AC converter circuit unit 610 , the DC converter circuit unit 620 , the second connection unit 520 , the diagnostic unit 700 , and the lamp unit 800 will be described with reference to FIG. 5 .

In a conventional converter for lighting an LED light, an AC converter circuit and a DC converter circuit are basically combined on a single circuit board. At this time, although the AC converter circuit and the DC converter circuit can be separated, conventionally, each circuit is combined on one circuit board and used.

At this time, in the present invention, the AC converter circuit and the DC converter circuit are separated, and the AC converter circuit part (including the circuit board) to which the AC converter circuit is coupled and the DC converter circuit part (including the circuit board) to which the DC converter circuit is coupled are separately separated. characterized. In addition, the AC converter circuit part and the DC converter circuit part are connected through the second connection part 520 , and a folding operation is possible.

The AC converter circuit unit 610 is coupled to the upper surface of the first frame unit 410 . One side of the AC converter circuit unit 610 is connected to the AC wire A connected to the power source P, and the other side of the AC converter circuit unit 610 is connected to the second connection unit 520 .

Likewise, the DC converter circuit unit 620 is coupled to the upper surface of the second frame unit 420 . One side of the DC converter circuit unit 620 is connected to the second connection unit 520 , and the other side of the DC converter circuit unit 620 is connected to the DC wire (D).

Power (P) - AC wire (A) - AC converter circuit part (610) - second connection part (520) - DC converter circuit part (620) - DC wire (D) - LED unit (1000) in the order of power is supplied and finally As a result, the LED unit 1000 is lit on the side to which the handle 10 of the door 1 is coupled (see FIG. 1).

As described above, in the present invention, since the first frame part 410 and the second frame part 420 are foldable, the AC converter circuit part 610 and the DC converter circuit part 620 are also coupled and separated, respectively. For this reason, unlike the conventional circuit board, the cross-sectional area is reduced to 1/2, and thus the converter can be miniaturized. Here, the second connection part 520 may be, for example, a foldable PCB cable.

In addition, in an embodiment of the present invention, the DC converter circuit unit 620 is preferably coupled to the diagnosis unit 700 for measuring the overvoltage of the circuit unit. Also, the diagnosis unit 700 is preferably coupled to the lamp unit 800 coupled to the DC converter circuit unit 620 .

The diagnosis unit 700 is coupled to a point of the DC converter circuit unit 620 , and determines when the reference voltage is higher than the reference voltage (overvoltage) so that the lamp unit 800 is turned on. Since the electrical configuration is a well-known technology, a detailed description thereof will be omitted.

Due to this configuration, only by turning on the lamp unit 800, the user can visually know that the life of the converter has expired or a problem has occurred, so that the convenience of replacement is increased, the lifespan can be predicted, and accidents due to overvoltage are not prevented. It has the advantage of preventing

The lamp unit 800 is coupled to be partially exposed from the side of the door 1 to which the handle 10 is coupled. For example, in a general case where there is no overvoltage determination from the diagnosis unit 700, it may appear colorless, and when it is determined as overvoltage from the diagnosis unit 700, it is repeatedly lit in a red series color suggesting a general warning. The replacement time can be expressed by driving such as.

The box unit 1100 is in the form of a box having a hollow part therein, and may be partially inserted into the side of the door 1 facing the inside of the house, and may be coupled to protrude from the door 1 .

Therefore, in the case of replacing parts (such as the AC converter circuit unit 610) in the first frame unit 410 and the second frame unit 420, only the box unit 1100 needs to be removed and replaced, so the convenience is further increased. do.

In addition, an AC wire and a DC wire are inserted into the box unit 1100 . When the user inserts the smart door lock according to the present invention into the box unit 1100 and connects the AC wires and the DC wires to the AC converter circuit unit 610 and the DC converter circuit unit 620, respectively, the converter function can be performed.

Therefore, as shown in FIG. 6, the LED unit 1000 can be turned on by inserting the first frame part 410, the second frame part 420, and the first connection part 510 inside the box unit 1100, By adding a switch, the driving of the LED unit 1000 can be more easily driven.

In this configuration, when inserting the converter composed of the first frame portion 410 and the second frame portion 420 according to the present invention into the box unit 1100 to be described later, it is inserted into the box unit 1100 in a folded state. Since the LED unit 1000 can be installed independently of each other, when the converter life is over and the converter is to be replaced, only the converter inside the box unit 1100 needs to be separated and replaced, thereby reducing the working time and improving the safety of workers. There are advantages to increasing.

In other words, it is easy to replace, can prevent a safety accident, and has the advantage of shortening the working time.

The smart door lock may have a coating layer formed along the outer surface of the frame portion. The coating layer is characterized in that it is excellent in anti-reflection, anti-fingerprint and anti-dust effect.

Since the smart door lock is exposed to the outside and used, there is a problem that surrounding dust is attached due to the generation of static electricity, and the operation of the smart door lock may be hindered by the reflection action by light.

Accordingly, the coating layer of the present invention is an antistatic layer, it is possible to prevent the generation of static electricity to prevent the adhesion of dust.

More specifically, the coating composition for forming the coating layer may include an organic solvent, a fluororesin, a conductive filler, graphite, an extract of dandelion tree, and an extract of nangin.

The fluororesin is a generic term for synthetic resins obtained by polymerizing olefins containing fluorine (fluorine). It is characterized by excellent heat resistance and chemical resistance, and a small coefficient of friction. Specifically, it has high durability and electrical insulation to withstand chemicals, has the lowest surface friction coefficient as an existing material, and is used as an engineering plastic for stable non-combustibility even at high temperatures. Compared to general plastics, it has excellent heat resistance, low temperature resistance, electrical insulation, high frequency characteristics, etc., and also has non-adhesive properties and low friction properties. Fluorine resin has been applied in a wide variety of fields from chemical industry, electrical and electronic industry, mechanical industry, as well as space development and aviation industry to household products because of the excellent properties.

The fluororesin is polytetrafluoroethylene (PTFE), tetrafluoroethylene hexafluoropropylene copolymer (FEP), ethylene tetrafluoroethylene copolymer (ETFE), perfluoropolyether It may be selected from the group consisting of (perfluoropolyether, PFPA) and perfluoralkoxy polymer (PFA), but is not limited thereto.

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

The graphite may be included in a small amount to continuously maintain the antistatic effect in the coating layer. Considering that graphite is an expensive conductive filler, it is included in a small amount in the coating layer in the present invention to maintain a continuous antistatic effect.

The sweet tree (Raphiolepis indica var. umbellata (Thunb.) Ohashi) is an evergreen shrub that grows at the foot of a mountain along the coast, reaching a height of 2 to 4 m, and its twigs are whorled. The leaves are alternate, but they look like they grow together at the tips of branches, are oblong or obovate, and have dull serrations on the edges. Flowers are white and run in panicles from April to June. The fruits are round and ripen black.

The fruit of the sweet berry has the effect of dilating blood vessels and improving blood flow, so it is used for heart diseases such as irregular heartbeat, high blood pressure, and chest pain.

The nangin (Persicaria senticosa (Meisn.) H. Gross ex Nakai ) is an annual vine that grows in the field and reaches 1 to 2 m in length, and the stem is square, red and has thorns. The leaves are alternate, triangular, acute, heart-bottomed, and hairy on both sides. Flowers are bisexual, clustered at the tip of branches in July to August, and have glandular hairs on the peduncle. Fruits are aqua, black, and covered with calyx. It is collected in summer and dried in the sun for use.

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

The coating composition is based on 100 parts by weight of the organic solvent, 40 to 80 parts by weight of a fluororesin, 30 to 50 parts by weight of a conductive filler, 5 to 10 parts by weight of graphite, 1 to 5 parts by weight of an extract of dandelion tree, and 1 to 5 parts by weight of an extract of nangin may include wealth.

In the case of the above range, the antistatic effect is maximized due to the synergistic effect by the interaction of each component, and thus the dust adhesion prevention effect can be improved. However, when it is out of the above range, the synergistic effect is rapidly reduced or there is almost no synergistic effect.

manufacturing example

Surface coating layer of smart door lock

1. Preparation of natural extract constituting the coating layer

The extracts were prepared in the same manner as the natural extracts of peppermint extract (ME), oleifera extract (LE), and hydrangea extract (SE), which constitute the deodorizing material, and extracts from serrata oleracea (RE) and cypress extract (PE). .

2. Preparation of coating composition

Toluene and phenol were mixed in an organic solvent in a weight ratio of 1:1, and a fluororesin, conductive filler, graphite, and an extract of P. oleifera (RE) and nangin extract (PE) were mixed as shown in Table 1 below to prepare a coating composition.

C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 organic solvent 100 100 100 100 100 100 100 100 100 100 100 100 100 ETFE 20 30 40 60 80 100 60 60 60 60 60 60 60 alumina 10 20 30 40 50 60 40 40 40 40 40 40 40 graphite One 3 5 7 10 15 7 7 7 7 7 7 7 RE - - - - - - 3 - 0.7 One 3 5 7 PE - - - - - - - 3 0.7 One 3 5 7

(Unit: parts by weight)

The alumina has a particle diameter of 30 to 50 μm.

3. Preparation of coating layer

The coating composition of C1 to C13 was applied to the substrate of the same material as the exterior frame of the smart door lock, and then cured to form a coating layer.

Experimental Example 1

Antistatic effect test

For the coating layer in which the coating composition of C1 to C13 is formed on one surface of the touch screen display, the surface electrical resistance was measured using a Resistance Meter SIMCO resistor ST-4 (25° C., 50% relative humidity).

As a comparative example, the surface electrical resistance of the display on which the coating layer is not formed was also measured, and the results are shown in Table 2 below.

surface electrical resistance
(Ω/cm ² ) comparative example 7.4×10 ¹¹ to 1.6×10 ¹² C1 7.5×10 ⁹ to 3.4×10 ¹⁰ C2 6.4×10 ⁹ to 1.4×10 ¹⁰ C3 7.2×10 ⁸ to 6.1×10 ⁹ C4 4.4×10 ⁷ to 2.1×10 ⁸ C5 6.5×10 ⁷ to 4.5×10 ⁸ C6 1.4×10 ⁹ to 1.6×10 ¹⁰ C7 7.4×10 ⁹ to 2.4×10 ¹⁰ C8 7.8×10 ⁹ to 5.8×10 ¹⁰ C9 6.4×10 ⁹ to 8.1×10 ¹⁰ C10 3.4×10 ⁶ to 5.5×10 ⁷ C11 4.0×10 ⁵ to 2.8×10 ⁶ C12 4.1×10 ⁶ to 2.1×10 ⁷ C13 1.1×10 ⁹ to 5.8×10 ¹⁰

According to Table 2, compared to the comparative example in which the coating layer is not formed, since the surface electrical resistance of C1 to C13 is low, the electrical conductivity is excellent, and it can be confirmed that an excellent antistatic effect is exhibited.

In addition, the coating composition is based on 100 parts by weight of the organic solvent, 40 to 80 parts by weight of a fluororesin, 30 to 50 parts by weight of a conductive filler, 5 to 10 parts by weight of graphite, 1 to 5 parts by weight of an extract of dandelion tree, and 1 to 5 parts by weight of an extract of nangin In the case of including the part, an excellent antistatic synergistic effect by the interaction of each component appears, and it can be seen that the dust adhesion prevention effect is excellent.

Although the preferred embodiment of the present invention has been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims are also provided. is within the scope of the

100: input unit, 110: smart key,
120: eyes, 200: sensor unit,
210: sensor unit, 220: notification unit,
300: lock unit, 400: frame unit,
410: a first frame portion, 420: a second frame portion,
500: a connection unit, 510: a first connection part,
520: second connection unit, 600: converter circuit unit;
610: AC converter circuit unit, 620: DC converter circuit unit,
700: diagnostic unit, 800: lamp unit,
900: identification unit, 1000: LED unit,
1100: box unit.

Claims (9)

a user-portable input unit;
a sensor unit sensing the input unit;
a locking unit for driving the door opening and locking;
an identification unit that identifies the previously registered user's biometric information and the recognized biometric information;
Doedoe coupled to the door, the light is lit LED unit; and
A control unit for controlling the sensor unit, the lock unit, the identification unit, and the LED unit; includes,
Only when the sensor unit senses the input unit close to the door, the identification unit is driven to identify whether it is biometric information of a previously registered user,
The LED unit is lit only when the sensor unit senses the input unit and when the biometric information recognized by the identification unit is the biometric information of a previously registered user,
The LED unit is removable from the door,
When the sensor unit senses the input unit, the first control unit transmits a first signal, but the first lock unit is released to drive the identification unit,
When the biometric information recognized by the identification unit matches the biometric information of the registered user, the second control unit transmits a second signal, the second locking unit is released and the door is opened,
When the identification of whether the biometric information recognized by the identification unit is the biometric information of the registered user exceeds three times, the LED unit is turned on,
The sensor unit is
a sensor unit for determining whether the input unit is in proximity; and
A notification unit having a notification function; provided as a
The notification unit is driven together with the LED unit,
The sensor unit is
To identify the input unit with a beacon function
The identification unit is
It is driven based on the biometric information recognition module,
The LED unit is
AC converter circuitry;
DC converter circuitry;
a frame part having a first frame part accommodating the AC converter circuit part and a second frame part accommodating the DC converter circuit part; and
A connection part connecting the first frame part and the second frame part;
The opening and closing of the first frame part and the second frame part are repeated by the connection part.
smart door lock.
delete delete delete delete delete delete According to claim 1,
The input unit is
user's eyes; and
Provided with a portable smart key;
The smart key is one of a mobile phone, a smart phone, a smart pad, a notebook computer, and a smart band
smart door lock.

9. The method of claim 8,
A coating layer is formed along the outer surface of the frame part
smart door lock.

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