KR200338880Y1 - Digital Door Lock Having Emergency Power Inlet - Google Patents

Abstract

The present invention relates to an emergency power supply device for driving a digital door lock during internal power discharge by configuring an external power supply connected to an external power source in the digital door lock itself.

A digital door lock device that can be locked and released by using a power source, the digital door lock device comprising: an external power supply unit configured to allow external power to be unlocked when an internal power source is discharged; Internal power supply for using the internal power as a power source for driving the digital door lock, but receiving power from the external power connection when the internal power is discharged; And it provides a digital door lock having an emergency power supply device comprising an internal power detection device for notifying that the internal power supply time of the digital door lock replacement.

According to an embodiment of the present invention, in the digital door lock using the internal power, if the internal power is discharged by leaving it for a long time while ignoring the detection indicating the replacement time of the internal power, the user may not have a replacement power nearby. You can use popular cell phone batteries even when you are in a state.

Description

Emergency Power Device and Method of Digital Door Lock Using Commercial Power and Mobile Phone Power {Digital Door Lock Having Emergency Power Inlet}

The present invention relates to an apparatus for emergency release of a lock of a digital door lock in a digital door lock that can use an external power source. More specifically, even if the internal power supply can be missed due to the replacement of the internal power supply, a commercial battery can be used to temporarily operate the digital door lock. Furthermore, even when a commercial battery is not provided, the user can use the battery of the mobile phone that the user has. It relates to a device capable of emergency unlocking the lock of the digital door lock.

Power sources for operating a locking device such as a digital door lock may be classified into an external power source and an internal power source. In the case of a digital door lock using an external power source, there is no fear that the power supply is discharged and cannot be used, but there may be a problem of aesthetics due to exposed wires and malfunction of the locking device due to an overvoltage caused by lightning. On the other hand, in case of digital door lock using internal power, there is no problem of aesthetics caused by exposed wires and malfunction of lightning, but if the internal power is not replaced for a certain period, the lock of the digital door lock cannot be released due to discharge of internal power. . Therefore, even if the user is discharged by missing the replacement time of the internal power supply, if the user has a power supply that can be supplied to a separate internal power supply device can temporarily release the lock of the digital door lock. In addition, when a commercial battery is not available in the surroundings, a user may temporarily apply a predetermined voltage to the internal power supply of the digital door lock using a battery of a mobile phone that the user carries.

In today's society, various types of access control devices are widely used to restrict unauthorized outsiders from various fields, such as homes, government agencies, and corporations. Access control devices are manufactured and used in various forms, ranging from simple low-cost locks to expensive mechanical and electronic devices that combine mechanical mechanisms and electronic technologies. The digital door lock has been recognized for its superiority by overcoming the user's inconvenience caused by the loss of the key of the mechanical locking device and the security problem caused by theft and duplication of the key by a malicious third party. Digital door locks are replacing existing mechanical locks due to the above-mentioned excellence, and are now expanding the market by creating replacement demands centered on general businesses, high-class residential areas and new APT complexes.

The digital door lock has an access control device using various electronic keys such as a password input method through a key input unit, a magnetic card method with a magnetic stripe, an RF (Radio Frequency) card method, and an IC (Intergrated Circuit) card method. It is widely spread. In the case of a digital door lock using an external power source as an operating power source and a digital door lock using an internal power source, there is no difference in opening and closing method.

However, in the case of a digital door lock using an internal power supply, the digital door lock operates normally when sufficient internal power is applied. However, if the replacement time is missed, it becomes difficult to drive the digital door lock when the internal power is discharged. In this case, the existing digital door lock is configured with an external power supply so that the digital door lock can be driven by applying a voltage of 9V. However, the existing external power connection has a disadvantage that the terminal spacing is fixed to the 9 V commercial battery terminal spacing. This makes it difficult for the user to obtain a 9 V commercial battery, which puts the user into a cumbersome and inconvenient situation to drive the digital door lock.

In order to solve the above problems, the present invention aims to operate the door lock even when the internal power is discharged in driving the digital door lock. When the internal power is discharged, the digital door lock is driven through a keypad operation while a predetermined voltage is applied to the external power supply connection to drive the digital door lock. The external power connection of the existing digital door lock is fixed to the terminal specifications of commercial 9 V batteries. However, when the user is placed in an environment where commercial 9V batteries are not available, the user may face difficulty in opening and closing the digital door lock in front of the door. In this case, an object of the present invention is to provide a device capable of providing a predetermined voltage to an internal power supply of a digital door lock using a battery of a mobile phone carried by a user.

1 is a view schematically showing a digital door lock performing a locking and releasing function by using an external power connection of a digital door lock according to a preferred embodiment of the present invention;

Figure 2 is a schematic diagram showing the configuration of the internal power detection device for detecting and displaying the internal power change amount of the digital door lock itself according to an embodiment of the present invention,

3 is a view showing an external power supply connected to an external power source in the digital door lock itself according to an embodiment of the present invention,

4 is a block diagram of a constant voltage device briefly showing a constant voltage device of an emergency power supply device according to an embodiment of the present invention;

5 is a flowchart illustrating a process of releasing a lock of a digital door lock device using an external power source according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: digital door lock outer operation portion 102: external power connection

104: keypad input unit 106: safety key contact terminal

108: protective cover 110: Mortis

200: internal power detection device 202: speaker

204: flashing light 206: internal power supply

300: Vcc terminal 302: GND terminal

304: sliding structure 400: external power connection terminal

402: constant voltage device 404: voltage comparison unit

406: voltage amplifying unit 408: voltage reducing unit

410: key pad and safety key contacts

In order to achieve the above object, the present invention, a digital door lock device that can be locked and released using a power source, the external power supply for enabling the unlocking of the digital door lock by receiving an external power when the internal power is discharged; Internal power supply for using the internal power as a power source for driving the digital door lock, but receiving power from the external power connection when the internal power is discharged; And it provides a digital door lock having an emergency power supply device comprising an internal power detection device for notifying that the internal power supply time of the digital door lock replacement.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related known configuration or function may obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a view schematically showing a digital door lock performing a locking and releasing function by using an external power connection of the digital door lock according to a preferred embodiment of the present invention.

The digital door lock according to the preferred embodiment of the present invention is largely the digital door lock outer operation unit 100, the external power supply connection 102, the keypad input unit 104, the safety key contact terminal 106, the protective cover 108, steel clasp It is configured to include a mortise (110) and the like. Hereinafter, each internal component will be described in detail.

The keypad input unit 104 and the safety key contact terminal 106 is an opening and closing device of the digital door lock according to the embodiment of the present invention, and the user can lock or open the digital door lock by inputting a password into the keypad input unit 104. The digital door lock may be locked or opened by contacting the safety key provided separately to the safety key contact terminal 106 without inputting a password to the keypad input unit 104. External power connection 102 of the digital door lock is located on top of the keypad input unit 104, as shown in the figure, and is protected by the protective cover 108 of the digital door lock together with the keypad input unit 104.

When the internal power supply is discharged, the digital door lock is driven by contacting the external power connector 102 with a commercial battery of 9 V and a mobile phone battery in the external power connector 102.

Mortis 110 with a steel clasp is driven by the internal power supply and serves as a lock that is a key function of the digital door lock.

Figure 2 is a schematic diagram showing the configuration of the internal power detection device for detecting and displaying the internal power change amount of the digital door lock itself according to an embodiment of the present invention.

An internal power detection device for detecting and displaying an internal power change amount of the digital door lock itself according to an embodiment of the present invention is the internal power detection device 200, the speaker 202, the flashing light 204, and the internal power supply device 206. It consists of. When the internal power detection device 200 diagnoses the voltage state of the internal power supply 206 and the voltage drops below the reference voltage, the speaker 202 and the flashing light 204 inform the user that it is time to replace the internal power supply. .

3 is a view showing an external power supply connected to an external power source in the digital door lock itself according to an embodiment of the present invention.

External power connection 102 is connected to the external power source according to the present invention has an external power connection terminal. The external power connection terminal is composed of a Vcc terminal 300, a GND terminal 302, a sliding structure 304 and is connected to the external power source. External power sources that can be connected to the external power connection unit 102 include a 9 V commercial battery and a user's mobile phone battery.

In the drawing, the Vcc terminal 300 of the external power supply connection 102 is attached to the sliding structure 304 using an insulating material, and the sliding structure 304 is in the shape of a recess.

Therefore, as shown in the enlarged view of the external power connection of FIG. 3, the user moves the Vcc terminal 300 attached to the sliding structure 304 from side to side to match the terminal spacing of the mobile phone battery with the user. And the distance between the GND terminal 302 can be adjusted.

4 is a block diagram of a constant voltage device briefly showing a constant voltage device of a door lock device according to an embodiment of the present invention.

According to a preferred embodiment of the present invention, the digital door lock includes a constant voltage device 402 for maintaining a reference voltage between the internal power supply device 206 of the digital door lock and the external power connection terminal 400 connected to the external power source.

Typically the digital door lock is configured to operate at a voltage of 3.3 V to 5 V. However, since the capacity and voltage of the battery are different for each mobile phone model, the constant voltage device 402 is configured to satisfy the driving voltage of the digital door lock.

In addition, the constant voltage device 402 is configured to maintain the driving voltage of the digital door lock between the external power connection terminal 400 of the external power connection unit 102 and the internal power supply device 206.

The constant voltage device 402 includes a voltage comparator 404, a voltage amplifier 406, and a voltage decompression unit 408.

The voltage comparator 404 is connected to the external power connection terminal 400. Here, the external power connection terminal 400 refers to the Vcc terminal 300 and the GND terminal 302 in the external power connection unit 102. The voltage comparison unit 404 compares the voltage applied to the external power connection terminal 400 with the driving voltage of the digital door lock, and the voltage amplification when the voltage applied to the external power connection terminal 400 is smaller than the driving voltage of the digital door lock. The unit 406 amplifies the driving voltage of the digital door lock. When the voltage applied to the external power connection terminal 400 is greater than the driving voltage of the digital door lock, the voltage decompression unit 404 functions to reduce the driving voltage of the digital door lock. When the voltage applied to the external power connection terminal 400 matches the driving voltage of the digital door lock, power is supplied to the internal power supply unit 206 without passing through the voltage amplifier 406 and the voltage decompression unit 408. do.

The voltage decompression unit 408 supplies power to the internal power supply 206 of the digital door lock through voltage decompression when the voltage applied to the external power connection terminal 400 is greater than the driving voltage for driving the digital door lock. In general, voltage reduction is performed when a 9 V commercial battery is applied to the external power connection terminal 400.

When the voltage applied to the external power connection terminal 400 is less than the driving voltage of the digital door lock, the voltage amplifier 406 supplies power to the internal power supply 206 of the digital door lock through a voltage amplification process.

5 is a flowchart illustrating a process of releasing a lock of a digital door lock device using an external power source according to an embodiment of the present invention.

The internal power supply voltage checker 200 checks the internal power supply voltage according to an embodiment of the present invention (S500).

In operation S500, the internal power detection apparatus 200 checks the internal power voltage and then determines when to replace the power (S502).

When it is time to replace the internal power supply in step S502, the internal power detection device 200 notifies the user that it is time to replace the power supply of the internal power supply device 206 by the effect sound of the speaker 202 and the blinking of the flashing light 204 (S504).

When the internal power detection apparatus 200 detects that the power is replaced in step S504, it is determined what kind of power the replaced power source is (S508).

When the user replaces the internal power with a commercial battery suitable for the internal power supply 206 as the replacement power of the digital door lock in step S508 (S510), the digital door lock operates normally (S518).

In operation S508, the user may temporarily apply a 9 V commercial battery to the external power connection unit 102 to drive the digital door lock (S512).

The voltage of the 9 V commercial battery applied to the external power connection unit 102 in step S512 is reduced in voltage by the voltage decompression unit 408 of the constant voltage device 402 (S516), and the digital door lock of the temporary power supply unit is normal. It is activated (S518).

If the user cannot obtain even a 9 V battery in step S508, the battery of the cellular phone that is being carried may be applied to the external power connection unit 102 (S514).

The voltage of the mobile phone battery applied to the external power connection unit 102 in step S514 is voltage amplified or decompressed to a driving voltage of 3.3 V to 5 V of the digital door lock in the constant voltage device 400 (S516).

In step S516, the voltage of the mobile phone battery that has passed through the constant voltage device 400 is applied to the internal power supply 206 to operate the digital door lock normally (S518).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas falling within the scope of the present invention should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, the conventional digital door lock using the internal power has an advantage of releasing the locking device by applying a commercial 9 V battery to the external power connection 102 even when the internal power is discharged. The disadvantage is that users will not be able to get a commercial 9 V battery.

However, according to the present invention, the external power connector 102 of the digital door lock can be replaced with a mobile phone battery that the user is carrying, even if the user cannot obtain a commercial 9 V battery in the vicinity, thereby unlocking the digital door lock. There is an advantage.

Claims (9)

In the digital door lock device that can be locked and unlocked using a power source, An external power connection unit 102 that receives external power when the internal power is discharged to enable unlocking of the digital door lock; An internal power supply (206) for using the internal power as a power source for driving the digital door lock, and receiving power from the external power connection unit 102 when the internal power is discharged; And An internal power detection device 200 informing that it is time to replace the internal power of the digital door lock. Digital door lock having an emergency power supply, characterized in that it comprises a. The method of claim 1, The external power connection unit 102 is a digital door lock having an emergency power supply, characterized in that it comprises a Vcc terminal 300 and a GND terminal (302). The method of claim 2, The Vcc terminal 300 or the GND terminal 302 is a digital door lock having an emergency power supply, characterized in that configured to vary the distance between each other. The method of claim 3, The Vcc terminal 300 or the GND terminal 302 is a digital door lock having an emergency power supply, characterized in that attached to the sliding structure. The method of claim 1, Digital door lock with an emergency power supply, characterized in that the external power source is a mobile phone battery or a 9V commercial battery. The method of claim 5, The digital door lock further comprises a constant voltage device (402) for amplifying or reducing the voltage to the digital door lock driving voltage when the external power is applied. The method of claim 1, And a speaker 202 and a flashing light 204 for detecting a power change amount of the internal power to inform the user that a replacement cycle of the internal power has been provided. The method of claim 6, The constant voltage device 402 may include a voltage comparator 404 for determining whether the externally applied voltage of the external power connection unit 102 is suitable for the driving voltage of the digital door lock; A voltage amplifier 406 for amplifying the voltage of the external power applied to the external power connection unit 102 to a driving voltage of the digital door lock; And Voltage decompression unit 408 for reducing the voltage of the external power applied to the external power connection unit 102 to the driving voltage of the digital door lock Digital door lock having an emergency power supply, characterized in that it comprises a. The method of claim 1, The drive voltage of the digital door lock is a digital door lock having an emergency power supply, characterized in that 3.3 V to 5 V.