KR20150123571A - Apparatus for controlling open and close of tempered glass door - Google Patents

Apparatus for controlling open and close of tempered glass door Download PDF

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Publication number
KR20150123571A
KR20150123571A KR1020140050119A KR20140050119A KR20150123571A KR 20150123571 A KR20150123571 A KR 20150123571A KR 1020140050119 A KR1020140050119 A KR 1020140050119A KR 20140050119 A KR20140050119 A KR 20140050119A KR 20150123571 A KR20150123571 A KR 20150123571A
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KR
South Korea
Prior art keywords
door
touch
unit
opening
control signal
Prior art date
Application number
KR1020140050119A
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Korean (ko)
Inventor
최재우
천성은
Original Assignee
최재우
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Filing date
Publication date
Application filed by 최재우 filed Critical 최재우
Priority to KR1020140050119A priority Critical patent/KR20150123571A/en
Publication of KR20150123571A publication Critical patent/KR20150123571A/en

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation

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  • Power-Operated Mechanisms For Wings (AREA)

Abstract

An apparatus for controlling opening and closing of a tempered glass door and a method thereof are provided. Wherein the control unit comprises: at least one touch terminal attached inside the tempered glass door to generate a door opening / closing control signal by recognizing an external touch input signal and transmit the door opening / closing control signal wirelessly; A driving unit for controlling opening and closing of a door and opening a door in response to a door open / close control signal; And a receiving unit for receiving the door opening / closing control signal from the touch terminal and transmitting the door opening / closing control signal to the driving unit in response thereto. In addition, the method of the present invention includes: recognizing a touch input signal outside a tempered glass door of a touch terminal installed in a tempered glass door; Generating a door open / close control signal in response to the touch input signal; Wirelessly transmitting the door opening / closing control signal; The receiving device receiving the door opening / closing control signal transmits the door opening / closing control signal to a driving unit for controlling opening and closing of the door; And opening the door in response to the door opening / closing control signal. According to the present invention as described above, the touch terminal is installed only inside, and the touch terminal recognizes an external touch input signal to control opening and closing of the door, thereby enhancing the convenience of installing the touch terminal, preventing breakage of the touch terminal and leakage of the password, There is an advantage that the switch corresponding to the pressed number is not damaged.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an opening /

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing control apparatus and method, and more particularly, to an opening / closing control apparatus for a door made of tempered glass.

2. Description of the Related Art Generally, a door opening and closing control device operates by receiving a signal generated by applying a physical force to a tack switch or a push switch installed near a door or a door, as an opening control signal, Whether the password is valid or not is determined. 1 is a view showing an example of a conventional door opening / closing control device, wherein (a) shows a door opening / closing control device using a push switch provided in an automatic door, (b) and (c) And a door opening / closing control device. (a) is mainly for an unspecified person entering and exiting a space where security is not needed. When a physical force is applied to the switch, the door is automatically closed after a certain time elapses after the door is opened. On the other hand, the door opening / closing control device of the type shown in (b) and (c) is installed for people entering and leaving the space requiring security, For example, if a password is entered, a keypad for inputting a password is installed. When a valid password is input, a door open signal is generated and a closed signal is automatically generated after a predetermined time elapses.

Such a conventional door opening and closing control apparatus has the following problems. First, in case (a), a push switch must be installed both inside and outside the door, and there is a problem in that it is not very good when installed on a glass door. (b) and (c), it is necessary to install the number key terminal for inputting the password on the outer wall of the glass door or the glass door itself, but it must be installed by exposing it to the outside, and there is a problem that the password is likely to be leaked have. Particularly, as shown in (c), a keypad for inputting a password is attached to a glass door. In this case, a hole is inevitable, and there is a problem that the window does not fit into a luxurious atmosphere.

As described above, the conventional door opening / closing control device requires installation of the touch terminal on both the inside and outside of the automatic door, so that installation convenience is reduced. Also, by installing the number key terminal on the outside, there is a risk of damaging the number key terminal or manipulating the password. Particularly, frequently used number keys are worn or erased, which may leak passwords. That is, the conventional door opening / closing control device is less secure. Also, in the conventional door opening / closing control device, the number key terminal often needs to be replaced due to a switch failure due to the pressing of the number key. Therefore, the conventional door opening / closing control device is not economical.

Accordingly, it is an object of the present invention to provide an apparatus for controlling opening and closing of a tempered glass door, which improves the convenience of installation by installing the touch terminal only inside, prevents breakage of the touch terminal and password leakage, and does not cause damage to the switch.

The present invention relates to an opening / closing control device for a reinforced glass door, which is free from damage to a glass door by attaching the touch terminal to a glass door without perforating the door, and can provide a decorative effect according to time and place by attaching various stickers to the outside of the stick- Method.

In one aspect, the opening and closing control device of the tempered glass door includes at least one touch terminal attached inside the tempered glass door to generate a door open / close control signal by recognizing an external touch input signal, and then transmit the door open / close control signal wirelessly; A driving unit for controlling opening and closing of a door and opening a door in response to a door open / close control signal; And a receiving unit for receiving the door opening / closing control signal from the touch terminal and transmitting the door opening / closing control signal to the driving unit in response thereto. The touch terminal includes a touch panel for sensing a touch input signal from a front surface or a back surface through a touch sensor; A data memory for storing data for setting an operation condition including the sensitivity of the touch panel, a sensing period, a use channel, and identification information; A touch panel driver for driving the touch panel based on a set value stored in the data memory; A control unit for generating a door open / close control signal in response to the touch input signal; A wireless transmission / reception unit for wirelessly transmitting the door opening / closing control signal; A display unit for displaying an operation state of the touch terminal including a power state of the touch terminal and a touch presence / absence notification signal; And a power supply unit for supplying power to the touch terminal under the control of the controller, wherein the controller determines whether the touch input signal is valid based on a preset validity determination condition, And controls the power unit to activate the operation modes of the wireless transceiver unit and the display unit by applying power to the wireless transceiver unit and the display unit that are operating in the standby mode. The receiving apparatus may further include a wireless transceiver for communicating with the touch terminals; A memory for storing registration information of the touch terminals registered in the receiving apparatus; A display unit for displaying a registration status of the touch terminals registered in the receiving apparatus; And a control unit for determining whether or not the door opening / closing signal is received from the registered touch terminal when the door open / close signal is received through the wireless transceiver unit, and transmitting only the door open / close signal transmitted from the registered touch terminal to the driving unit do.

In another aspect, a method for controlling opening and closing of a tempered glass door is provided. The method of controlling opening and closing of the tempered glass door includes: recognizing a touch input signal outside the tempered glass door of a touch terminal installed in the tempered glass door; Generating a door open / close control signal in response to the touch input signal; Wirelessly transmitting the door opening / closing control signal; The receiving device receiving the door opening / closing control signal transmits the door opening / closing control signal to a driving unit for controlling opening and closing of the door; And opening the door in response to the door opening / closing control signal. In this case, the step of determining whether the touch input signal is valid may further include determining whether the touch input signal is valid based on a predetermined validity determination condition. The method includes: counting a touch input hold time; Generating an open fixed signal when the touch input hold time passes a preset open fixed time; Wirelessly transmitting the open fixed signal; The receiving apparatus receiving the open fixed signal transmits the open fixed signal to the driving unit; Maintaining a door opening state in response to the open fixed signal; When a new touch input signal is generated, transmitting the new touch input signal wirelessly; And closing the door in response to the driving of the driving unit. The method also includes a first transmitting step of transmitting the identification information to the receiving device by the touch terminal in response to a touch input signal; A second transmission step in which the touch terminal transmits identification information to the reception apparatus in response to a touch input signal repeated within a predetermined time; And registering the corresponding touch terminal when the identification information transmitted in the first and second transmission steps are identical to each other, wherein the door open / close control signal transferring step includes transmitting the door open / close control signal from the touch terminal It may further include a step of confirming whether it has been delivered.

The present invention relates to a touch terminal which is installed only inside the touch terminal and recognizes an external touch input signal by the touch terminal to control the opening and closing of the door, thereby enhancing the convenience of installing the touch terminal, preventing breakage of the touch terminal and leakage of the password, There is no fear that the corresponding switch is damaged. Further, the present invention is advantageous in that the glass door is not damaged by attaching the touch terminal to the glass door without puncturing, and various stickers are attached to the outside of the sticker type touch terminal to give a decoration effect depending on the place and time.

1 is an exemplary view of a conventional door opening / closing control device.
2 is a schematic system block diagram of a door opening and closing control apparatus according to an embodiment of the present invention.
3 is a schematic block diagram of a door open / close control device and a transceiver included therein according to an embodiment of the present invention.
4 is a flowchart illustrating a process of registering a transmitter in a door opening / closing control apparatus according to an embodiment of the present invention.
FIG. 5 is a flowchart illustrating a process for controlling a line entrance opening / closing control according to an embodiment of the present invention.
FIG. 6 is a flowchart illustrating a process of a door opening / closing control method according to another embodiment of the present invention.
7 to 12 are diagrams showing application examples of a door opening and closing control apparatus according to an embodiment of the present invention.
FIG. 13 is a view showing an electrode arrangement example of a touch film applied to a door opening / closing control apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and like parts are denoted by similar reference numerals throughout the specification. And a detailed description thereof will be omitted to omit descriptions of portions that can be readily understood by those skilled in the art.

Throughout the specification and claims, where a section includes a constituent, it does not exclude other elements unless specifically stated otherwise, but may include other elements.

2 is a schematic system block diagram of a door opening and closing control apparatus according to an embodiment of the present invention. Referring to FIG. 2, the door opening / closing control apparatus according to an embodiment of the present invention includes a receiving device RX_Dev 100, a dead bolt auto door rail controller 200, a transmitting device TX_Con 300, And a touch film (T_Film) (400). At this time, the transmission device (TX_Con) 300 and the touch film (T_Film) 400 can be integrally implemented and are also referred to as a touch terminal. The transmission device TX_Con 300 and the touch film T_Film 400 are installed in the vicinity of a door and generate a door opening / closing control signal in response to a touch input signal of a person who wants to enter and exit the door, , And is transmitted using a local area network (e.g., ZigBee wireless).

The receiving device RX_Dev 100 receives the control signal and transmits the control signal to the dead bolt auto door rail controller 200 to control the opening and closing of the door. Meanwhile, the receiving device (RX_Dev) 100 can operate by being supplied with power from a dead bolt auto door rail controller (200).

3 is a schematic block diagram of a door open / close control device and a transceiver included therein according to an embodiment of the present invention. 3, the door opening / closing control device is attached to the inside of the tempered glass door to generate a door open / close control signal by recognizing an external touch input signal, and then transmits at least one door opening / A control unit 300 for controlling the opening and closing of the door, a driving unit 200 for opening and closing a door in response to a door open / close control signal, a receiving unit for transmitting the door open / close control signal to the driving unit, 100).

The transmitter 300 includes a touch panel 310, a touch panel driver 320, a data memory 330, a controller 340, a battery 350, a display 360, and an RF transmitter / receiver 370.

The touch panel 310 senses a touch input signal from the front or back through the touch sensor. At this time, the touch panel 310 may be implemented as a general mechanism or as a film. Further, each of these may include a number key area for inputting a password. 7 to 9 show an example of application of the door opening / closing control device for each embodiment of the touch panel 310. FIG. 7 shows an example of a case where the touch panel 310 is implemented in the form of a mechanism, FIG. 9 shows an example in which the panel 310 is implemented in a film form, and FIG. 9 shows an example in which the number key input area is included in the touch panel 310 implemented in a film form. 7B is a view showing an example in which a touch panel A in the form of a mechanism is provided inside a glass door B and FIG. ) Illustrates a device type touch panel viewed from the outside of the glass door. 8A illustrates an example of a film type touch panel D viewed from the inside and FIG. 8B illustrates an example in which a film type touch panel D is provided inside a glass door E. FIG. . The upper end portion C of the film-shaped touch panel D is a device in which each block of the transmitter 300 except for the touch panel is mechanized. FIG. 9A illustrates a film type touch panel G including a number key input area, FIG. 9B illustrates a touch panel G in a film form including a number key input area, Is provided inside the glass door (H). The upper end portion F of the film type touch panel G including the number key input region shows a device in which each block of the transmission device 300 except for the touch panel is structured as in the case of FIG. 8 and FIG. 9, the shape of the touch panel viewed from the outside of the glass door is omitted because it is similar to the case of FIG.

The touch panel driver 320 drives the touch panel 310 based on the set values stored in the data memory 330.

The data memory 330 stores data for setting operating conditions including the sensitivity of the touch panel 310, the sensing period, the use channel, and the identification information.

The control unit 340 controls the operation of each part of the transmitting apparatus 300 based on a preset operation program. In particular, the control unit 340 generates a door open / close control signal in response to the touch input signal. The control unit 340 controls the battery 350 to apply power to the RF transmitting and receiving unit 370 and the display unit 360 operating in the standby mode to activate the operation modes of the RF transmitting and receiving unit 370 and the display unit 360 do. In this case, the control unit 340 determines whether the touch input signal is valid or not based on a preset validity determination condition, and then generates the door opening / closing control signal and the RF transmission / reception unit 370 and the display unit 360 only when the input signal is a valid touch input signal. It is preferable to perform the activation of the operation mode.

The battery 350 supplies power to each part of the transmitting device (also referred to as a touch terminal) 300 under the control of the controller 340.

The display unit 360 displays an operation state (for example, a power state, a touch presence / absence notification signal, etc.) of the transmitting apparatus (also referred to as a touch terminal) At this time, it is preferable that the display unit 360 displays the operation state of the transmitter (aka, the touch terminal) 300 by any one of light, vibration, and sound.

The RF transmitting / receiving unit 370 wirelessly transmits the door open / close control signal generated by the controller 340. At this time, the RF transmitting / receiving unit 370 transmits using a local area wireless communication network (e.g., ZigBee wireless).

The receiving apparatus 100 includes a memory 110, a controller 120, an RF transceiver 130, a display unit 140, and a power unit 150.

The memory 110 stores operation information of the receiving apparatus 100, and in particular, registration information of a transmitting apparatus (also referred to as a touch terminal) 300 registered in the receiving apparatus 100. [

When the door opening / closing signal is received through the RF transceiver 130, the control unit 120 determines whether or not the door opening / closing signal has been transmitted from the already registered touch terminal, based on the information stored in the memory 110, Only the door opening / closing signal transmitted from the touch terminal is transmitted to the driving unit 200.

The RF transceiver 130 communicates with a transmitter (also referred to as a touch terminal) 300. At this time, the RF transmitting and receiving unit 130 transmits using a local area wireless communication network (for example, ZigBee wireless).

The display unit 140 displays the registration status of the touch terminals registered in the receiving apparatus 100. [

The power supply unit 150 supplies power to each part of the receiving apparatus 100 under the control of the control unit 120. [

On the other hand, the driving unit 200 includes a control unit (not shown) for controlling the opening and closing of the door on the basis of the door opening / closing control signal transmitted from the receiving station 100, It is controlled to be closed after a predetermined time without control signal.

Further, the apparatus of the present invention may further include a sticker (not shown) attached to display a touch area on the exterior of the tempered glass door. That is, various stickers may be attached to the outer area of the touch terminal to give a decoration effect depending on the time and place.

4 is a flowchart illustrating a process of registering a transmitter in a door opening / closing control apparatus according to an embodiment of the present invention. 4, in order to register the transmitting apparatus (Trx unit) 300 in the receiving apparatus (Rtx unit) 100, the receiving apparatus (Rtx unit) 100 must first be operating in the registration mode ). When the touch input signal is generated in the transmitting apparatus (Trx unit) 300 (S103) when the receiving apparatus (Rtx unit) 100 is operating in the registration mode, the transmitting apparatus (Trx unit) 300 (First transmission) to the receiving apparatus (Rtx unit) 100 (S105). When the touch input signal repeatedly occurs within a predetermined time (S107), the transmitting apparatus (Trx unit) 300 transmits the registration data including the identification information thereof to the receiving apparatus (Rtx unit) 100 again (Secondary transfer) (S109).

Then, the receiving apparatus (Rtx unit) 100 compares the registration data transmitted over the first and second orders (S111) and registers the transmission apparatus (Trx unit) 300 if the two values are identical (S113) . Then, a registration completion signal is displayed (S115). A plurality of transmitting apparatuses (Trx units) 300 can be connected to one receiving apparatus (Rtx unit) 100. In this case, by performing this procedure using each transmitting apparatus (Trx unit) 300, The device (Trx unit) 300 can be registered.

FIG. 5 is a flowchart illustrating a process for controlling a line entrance opening / closing control according to an embodiment of the present invention. Referring to FIG. 5, in order to perform door opening / closing control according to an embodiment of the present invention, the receiving apparatus (Rtx unit) 100 must be operated in a receiving mode (S201). When the touch input signal is generated (S205), the transmitting apparatus (Trx unit) 300 recognizes the touch input signal (S203) while the transmitting apparatus (Trx unit) 300 is operating in the standby mode And determines whether the touch input signal is valid based on the condition (S207). If it is determined in operation S207 that the inputted touch input signal is valid (S209), the transmitter (Trx unit) 300 transmits each operation block (e.g., Trx unit) , RF transmitting / receiving unit, display unit, etc.) (S211). That is, it activates the operation mode of each operation block (for example, RF transmitting / receiving unit, display unit, etc.).

(Trx unit) 300 via the RF transmitting / receiving unit of the activated transmitting apparatus (Trx unit) 300 (step S11), and transmits the open signal (i.e., door opening / closing control signal) generated in response to the touch input signal S213). At this time, the transmitting apparatus (Trx unit) 300 and the receiving apparatus (Rtx unit) 100 perform mutual wireless communication through the short-range wireless communication network.

Then, the receiving apparatus (Rtx unit) 100 confirms whether the received open signal is transmitted from a transmitting apparatus (aka, a touch terminal) (Trx unit) 300) (S215) S217). The driver receiving the open signal opens the door in response.

When the preset open time has elapsed (S219), the receiving apparatus (Rtx unit) 100 generates a close signal by itself (S221) and transmits the closed signal to the driving unit so that the driving unit closes the door. Meanwhile, the close signal may be generated by the driving unit itself.

FIG. 6 is a flowchart illustrating a process of a door opening / closing control method according to another embodiment of the present invention. Referring to FIG. 6, in order to control opening and closing of a door according to another embodiment of the present invention, the receiving apparatus (Rtx unit) 100 must be operated in a receiving mode (S301). When the touch input signal is generated (S305), the transmitting apparatus (Trx unit) 300 recognizes the touch input signal (S303) while the transmitting apparatus (Trx unit) 300 is operating in the standby mode, (Rtx unit) 100 via the RF transceiver of the active transmission device (Trx unit) 300 (S307). At this time, the transmitting apparatus (Trx unit) 300 and the receiving apparatus (Rtx unit) 100 perform mutual wireless communication through the short-range wireless communication network.

Then, the receiving apparatus (Rtx unit) 100 delivers it to the driving unit (S309). The driver receiving the open signal opens the door in response.

When a preset open time elapses (S311), the receiving apparatus (Rtx unit) 100 generates a close signal by itself (S313) and transmits the closed signal to the driving unit so that the driving unit closes the door. The closing signal may be generated by the driving unit itself.

When a touch input signal is generated in the transmitting device (Trx unit) 300, the touch input holding time Ttouch is counted until the touch is terminated (S315, S317) When the preset open fixed time T (long) has elapsed (S319), an open fixed signal is generated and transmitted by radio (S321).

Then, the receiving device (Rtx unit) 100 transmits the open fixed signal to the driving unit and maintains the door open state in response to the open fixed signal. At this time, the receiving apparatus (Rtx unit) 100 ignores the self-generated close signal (S323) and waits for reception of the close signal (S325).

When the door open state is maintained as such, when a new touch input signal is generated in the transmitting device (Trx unit) 300 (S327), the transmitting device (Trx unit) 300 transmits it wirelessly (S329) And the driving unit closes the door that is open and fixed.

10 to 12 are diagrams showing application examples of a door opening / closing control apparatus according to an embodiment of the present invention. 10 is not an automatic door, but a door-opening control device having a locking device 11 is provided with a key-touch film 15 including a number key and a controller 13 And FIG. In this case, the user can open the door lock by inputting the password on the touch film.

11 and 12 illustrate an example of a door opening / closing control device for inputting a password using Bluetooth. FIG. 11 is a diagram showing an example of a door opening / FIG. 12 shows an example of a case where the controller 23 receives the password through the Bluetooth communication of the controller 20 and controls the opening and closing of the door. FIG. 12 shows an example of the door opening and closing control device having the locking device 31 And the controller 33 receives the password through the Bluetooth communication with the mobile phone 37 and releases the lock of the door.

13 is a view showing an example of electrode arrangement of a touch film applied to a door opening / closing control apparatus according to an embodiment of the present invention. Referring to FIG. 13, a touch film applied to an embodiment of the present invention has a touch sensitivity The electrodes were arranged in a mesh form to increase the height.

In the above-described exemplary system, the methods are described on the basis of a flowchart as a series of steps or blocks, but the present invention is not limited to the order of the steps, and some steps may occur in different orders .

It will also be understood by those skilled in the art that the steps shown in the flowchart are not exclusive and that other steps may be included or that one or more steps in the flowchart may be deleted without affecting the scope of the invention.

Claims (5)

At least one touch terminal attached inside the tempered glass door to generate a door opening / closing control signal by recognizing an external touch input signal and transmit the door opening / closing control signal wirelessly;
A driving unit for controlling opening and closing of a door and opening a door in response to a door open / close control signal; And
And a receiving unit for receiving the door opening / closing control signal from the touch terminal and transmitting the door opening / closing control signal to the driving unit in response to the control signal. The method of claim 1, wherein the touch terminal
A touch panel for sensing a touch input signal from a front surface or a back surface through a touch sensor;
A data memory for storing data for setting an operation condition including the sensitivity of the touch panel, a sensing period, a use channel, and identification information;
A touch panel driver for driving the touch panel based on a set value stored in the data memory;
A control unit for generating a door open / close control signal in response to the touch input signal;
A wireless transmission / reception unit for wirelessly transmitting the door opening / closing control signal;
A display unit for displaying an operation state of the touch terminal including a power state of the touch terminal and a touch presence / absence notification signal; And
And a power supply unit for supplying power to the touch terminal under the control of the control unit. 3. The apparatus of claim 2, wherein the control unit
The wireless communication unit determines whether the touch input signal is valid based on a predetermined validity judgment condition and then controls the power unit in the case of a valid touch input signal to apply power to the wireless transceiver unit and the display unit, And the operation mode of the display unit is activated. The display device according to claim 2, wherein the display unit
Wherein the power state of the touch terminal or the touch presence / absence notification is displayed by at least one of light, vibration, or sound. The touch panel according to claim 2,
Wherein the opening / closing control device is implemented in a film form.
KR1020140050119A 2014-04-25 2014-04-25 Apparatus for controlling open and close of tempered glass door KR20150123571A (en)

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Application Number Priority Date Filing Date Title
KR1020140050119A KR20150123571A (en) 2014-04-25 2014-04-25 Apparatus for controlling open and close of tempered glass door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140050119A KR20150123571A (en) 2014-04-25 2014-04-25 Apparatus for controlling open and close of tempered glass door

Publications (1)

Publication Number Publication Date
KR20150123571A true KR20150123571A (en) 2015-11-04

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Country Link
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