KR20110005634A - System for saving a finger print connected digital door-lock and method of the same - Google Patents

Abstract

PURPOSE: A gate fingerprint saving system and a method thereof are provided to obtain the personal profile of a criminal in advance when a crime is generated. CONSTITUTION: A bell signal input module(2) inputs the visit signal of a visitor and transmits the scanned fingerprint data to a door security management terminal(30). A digital door lock module(20) drives a door lock by receiving the control signal from the door security management terminal. The door security management terminal transmits the locking or the unlocking control signal of the door lock to the digital door lock module.

Description

Door fingerprint storage system interworking with digital door lock and method thereof {SYSTEM FOR SAVING A FINGER PRINT CONNECTED DIGITAL DOOR-LOCK AND METHOD OF THE SAME}

The present invention relates to a door fingerprint storage system and a method of interlocking with a digital door lock, and more specifically, to a visitor by releasing a door upon satisfaction of a first unlock signal and a second unlock signal through a fingerprint input. Proactively prevents robbery accidents pretending to be a deliveryman by blocking visitor's remorse situation in advance and automatically captures visitor's image when dissatisfaction with maritime condition. The present invention relates to a door fingerprint storage system interworking with a digital door lock and a method thereof.

As is well known, due to the recent rapid advances in electronic communication technology and the increase in the disposable property of individuals, recently, various authentication technologies for identity verification have been developed.

In other words, identity verification was developed in recognition of the necessity in most fields related to payment or age restriction, such as the restriction on the use of various added values and the restriction on the use of various information. .

However, when a password is leaked, an error of identity verification may occur, and thus, more complicated and accurate authentication technology has recently been developed.

The representative authentication method is raw vegetable authentication technology. In other words, it is an identity verification technology using iris, fingerprint, DNA, etc., and additional authentication technology that performs authentication by registering biometric data, that is, fingerprint data and iris data, on a server in advance and comparing the biometric data input by the user is introduced. However, in this case, it takes a lot of time for authentication, there was a problem that the user is very uncomfortable when using.

Recently, in the case of a digital door lock, the technology of driving the door lock in such a manner as to permit access by directly inputting a preset password by the user or by performing authentication through an RFID tag having a built-in unique number is applied. It became.

Recently, however, the number of robbery crimes of visitors disguised as couriers and food delivery agents has surged due to the burden of wealth and distorted values or mental illnesses produced by complex industrial societies.

However, there is no device that can prevent this when the occupant enters the room by releasing the door lock and turns into a robbery. This is because it is not a problem to be solved by strengthening the security of the door lock.

In other words, no matter how much security or authentication is allowed for family members to enter the room, they are allowed to enter the house due to the needs of family members, and if the visitor turns into a robbery, they are immediately exposed to crime without defense. There was a problem.

The present invention has been made in view of the above-described state of the art, and the visitor turns into strength by unlocking the door upon satisfaction of the first unlocked signal input by the resident and the second unlocked signal through the fingerprint input or not. Prevents robbery pretending to be a deliveryman by automatically blocking visitor images and automatically capturing visitor images when dissatisfaction with maritime conditions, and digitally secured new recruits of criminals through fingerprints and captured images in the event of a crime It is an object of the present invention to provide a door fingerprint storage system and a method interlocked with a door lock.

In order to achieve the above object, according to a preferred embodiment of the present invention, a doorbell signal input module for inputting a visit signal of a visitor and transmitting the scanned fingerprint data to the door security management terminal according to the guidance voice; A digital door lock module configured to drive the door lock by receiving the unlocking and visibility control signals of the door lock from the door security management terminal; It is determined whether the first unlocking condition generated by the occupant is input by the visitor's visit signal from the doorbell signal input module, and whether or not the second unlocking condition is input according to whether the visitor inputs fingerprint data and corrects the door lock in the digital door lock module. Alternatively, the door fingerprint storage system interlocked with the digital door lock is provided, wherein the door security management terminal is configured to transmit the lock control signal so that the fingerprint of the visitor can be stored by the resident's home before the door lock is unlocked.

Preferably, the doorbell signal input module is provided with a door fingerprint storage system interlocked with a digital door lock, characterized in that the front door further comprises a speaker for outputting a guide voice for requesting a fingerprint input.

Preferably, the doorbell signal input module includes a camera for capturing image data of the visitor therein; A fingerprint scan unit for scanning fingerprint data of the visitor; A signal generator for notifying the resident whether or not the visitor is visiting; Provided is a door fingerprint storage system interlocked with a digital door lock, comprising a communication module for transmitting a signal or fingerprint data input by a visitor to a door security management terminal.

Preferably, the door security management terminal includes a main memory storing therein door lock driving information according to the presence or absence of input of the first and second unlocking conditions and guide voice data requesting fingerprint input of the visitor and setting information for data management; Fingerprint data of the visitor received from the doorbell signal input module, there is provided a door fingerprint storage system interlocked with the digital door lock further comprises a temporary memory for storing the visitor image data.

Preferably, the door security management terminal determines whether the first and second unlocking conditions are input, determines whether the received fingerprint data is a normal person's fingerprint, and outputs the determination result information through the monitor. Provided is a door fingerprint storage system interlocked with a digital door lock, characterized in that it further comprises a control unit for controlling the door lock is unlocked when a condition is input.

Preferably, the temporary memory is a portable USB memory stick that can be connected to a personal computer to output the fingerprint data on the screen or the door fingerprint storage system interlocked with the digital door lock, characterized in that the built-in memory in the remote personal computer do.

Preferably, the control unit operates a timer when outputting a guide voice requesting a fingerprint input, and if a fingerprint is not input within a set time, captures and stores a visitor image with a camera, and sets a control schedule so as not to generate a door lock release signal. A door fingerprint storage system interlocked with a digital door lock is provided.

Preferably, the control unit is provided with a door fingerprint storage system interlocked with the digital door lock, characterized in that for automatically deleting the stored fingerprint data of the visitor when the set time has elapsed.

On the other hand, the present invention comprises a first step of receiving a visit signal of the visitor door security management terminal; A second step of determining whether a primary release signal of a resident is applied; Outputting a guide voice requesting a fingerprint input of the visitor; A fourth step of the door security management terminal starting the timer; A fifth step of determining whether fingerprint data of the visitor, which is the second unlock signal, is received; A sixth step of analyzing the received fingerprint data to determine whether it is human fingerprint data; A seventh step of temporarily storing the visitor's fingerprint data in a memory; Provided is a door fingerprint storage method interlocked with a digital door lock, comprising an eighth process of releasing the digital door lock.

Preferably, the fifth step includes the step of photographing the visitor's image data by driving the camera if the visitor's fingerprint data is not input for a set time; Provided is a door fingerprint storage method interlocked with a digital door lock, further comprising the step of temporarily storing the image data of the visited image.

Preferably, after the eighth step, determining whether a setting time for data deletion has arrived; When the data deletion time arrives, there is provided a door fingerprint storage method interlocked with a digital door lock, further comprising a process of automatically deleting a visitor's fingerprint data or image data.

Preferably, if a command signal for maintaining fingerprint data is separately input before data deletion, the door security management terminal further comprises a process of processing to maintain the storage of fingerprint data. A fingerprint storage method is provided.

The door fingerprint storage system and method interlocked with the digital door lock according to the present invention can prevent the change of the robbery by allowing the visitor, such as a deliveryman, to input the fingerprint, and secure the personality of the criminal early in the event of a crime accident. can do. In addition, if a visitor who attempts a crime refuses to enter the room due to disagreement with a fingerprint input request, the preliminary criminal's video data is automatically captured and stored for a certain period of time, which can be used as an investigation data when a crime occurs in a nearby area. By elapsed time, by automatically deleting the visitor's fingerprint data and video data can establish a strong home security, has the advantage of high ease of use.

1 is a perspective view showing the appearance of a doorbell signal input device included in a door fingerprint storage system interlocked with a digital door lock according to an embodiment of the present invention;
2 is a schematic diagram showing a schematic configuration of a door fingerprint storage system interlocked with a digital door lock according to an embodiment of the present invention;
3 is a block diagram illustrating a circuit configuration of a door fingerprint storage system interlocked with a digital door lock according to an embodiment of the present invention;
Figure 4 is a flow chart showing the signal flow of the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail with reference to drawings.

1 is a perspective view showing the appearance of a doorbell signal input device included in a door fingerprint storage system interlocked with a digital door lock according to an embodiment of the present invention, and FIG. 2 is linked with a digital door lock according to an embodiment of the present invention. It is a schematic diagram which shows schematic structure of a door fingerprint storage system.

Referring to this, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention unlocks the door upon satisfaction of the first release signal input by the resident and the second release signal through the fingerprint input or not. Proactively prevents robbery accidents pretending to be a deliveryman by blocking visitor's remorse situation in advance and automatically captures visitor's image when dissatisfaction with maritime condition. It is a system that can be secured.

That is, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention, when the visitor presses the doorbell to generate a visit signal, and the homeowner confirms the visitor and issues a signal for unlocking the door. Recognizes as a second unlocked signal, and recognizes the input signal scanned by the visitor's fingerprint as a secondary unlocked signal to finally release the door lock, thereby suppressing the impulse sentiment that the visitor can turn into a strength, the visitor's fingerprint By securing in advance, it is a system that can secure new recruits through fingerprints of visitors in the event of a future criminal accident.

In particular, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention generates a guide voice requesting a fingerprint input to a visitor located outdoors, and if the fingerprint of the visitor is not input for a predetermined time, the visitor through the camera By taking an image and storing the data, it is possible to secure an image of a potential criminal and cancel the first unlock signal of the door lock.

In addition, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention analyzes the fingerprint data of the visitor, which is the second unlocking condition, and determines whether the fingerprint data is not fingerprint data. In other words, if you are wearing gloves or scanning papers, not fingerprints, you can capture the image of the visitor through the camera and save the data to secure the image of a potential criminal and cancel the first lock signal of the door lock. Process.

In this case, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention automatically deletes the captured visitor image or the visitor's fingerprint data when a predetermined time elapses.

More specifically, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention includes a digital door lock module 20 provided in the door; A doorbell signal input module (2) attached to the outdoor wall of the door; The door security management terminal 30 provided in the room is interlocked with each other to control the access of the visitor.

In detail, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention inputs a visit signal of a visitor and transmits the scanned fingerprint data to the door security management terminal 30 according to the guidance voice. The doorbell signal input module 2 is provided.

That is, the visitor notifies the resident of his visit through the doorbell signal input module 2, and at the same time the doorbell signal input module 2 receives the visitor's image data through the camera. It outputs the screen through), outputs a guide voice requesting the fingerprint of the visitor through the speaker, and scans the fingerprint of the visitor to transmit to the door security management terminal (30).

In addition, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention is provided with a digital door lock module 20 for driving the door lock by receiving the unlock and correction control signals of the door lock from the door security management terminal 30. do.

In addition, in the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention, whether the primary unlocking condition generated by the resident input by the visitor's visit signal from the doorbell signal input module 2 and the visitor's fingerprint It is determined whether the second unlocking condition is input according to data input, and the digital door lock module 20 includes a door security management terminal 30 which transmits a correcting or unlocking control signal of the door lock to unlock the fingerprint of the visitor. Allow your home to store it before.

That is, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention is a desire indication that the visitor wants to release the door lock by visiting, and notifies the indoor resident through the doorbell signal input of the visitor visit signal, and the indoor resident. Even if the first door unlock signal for unlocking the door lock is input, the door lock is not unlocked if the visitor does not input fingerprint data.

Through this, the present system can prevent visitors from being delivered to the robbery by inputting fingerprints, and can secure the identity of the offender early in the event of a criminal accident. In addition, when a visitor who attempts a crime waits only outdoors without responding to a fingerprint input request, the preliminary criminal's video data is automatically captured and stored for a certain time, which can be used as an investigation data when a crime occurs in a nearby area. After the elapse of time, by automatically deleting the visitor's fingerprint data and video data can establish a strong home security, it is easy to use.

In particular, recently, robbery crimes of visitors disguised as couriers and food delivery agents have surged due to the burden of wealth and distorted values or psychosis produced by complex industrial societies. However, there is no device that can prevent this when the occupant enters the room by releasing the door lock and turns into a robbery. This is because it is not a problem to be solved by strengthening the security of the door lock.

However, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention is a system that solves this problem.

At this time, the doorbell signal input module 2 is further provided with a speaker 10 for outputting a guide voice for requesting a fingerprint input of the visitor on the front.

When the doorbell signal input module 2 is described in more detail, the doorbell signal input module 2 is provided with a case 4 constituting its appearance, and an image of a visitor is displayed on the front of the case 4. A camera 8 for capturing data is provided, and a signal input unit 6 is provided for notifying the occupant of the visitor's visit, and a fingerprint scan unit 12 for inputting fingerprint data is provided.

3 is a block diagram illustrating a circuit configuration of a door fingerprint storage system interlocked with a digital door lock according to an embodiment of the present invention.

Referring to this, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention is provided with a doorbell signal input module 2, and the doorbell signal input module 2 stores visitor image data therein. A camera 8 for capturing; A fingerprint scan unit 12 for inputting visitor's fingerprint data; A signal generator 6 for informing the resident whether or not the visitor is visiting; A speaker 10 for outputting a guide voice requesting a fingerprint input of the visitor; It comprises a communication module 14 for transmitting a signal or fingerprint data input by the visitor to the door security management terminal.

On the other hand, the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention is provided with a digital door lock module 20, the digital door lock module 20 from the door security management terminal 30 therein A door lock driving unit 22 is received and driven to receive the unlock control signal, and a communication module 28 for communicating with the door security management terminal 20 is provided.

In the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention, the door security management terminal 30 uses the unlock signal input by the occupant as the primary unlock signal, and the fingerprint data input by the visitor is secondary unlocked. As a signal, when the input of the first and second unlock signals is completed, the digital door lock module 20 is configured to generate a final unlock signal.

The main door 40 stores the door lock driving information according to whether the first and second unlocking conditions are input and the guide voice data requesting the fingerprint input of the visitor and the setting information for data management therein. Wow; A temporary memory 42 for storing the visitor's fingerprint data and the visitor's image data received from the doorbell signal input module 2 is provided.

At this time, the temporary memory 42 is a portable USB memory stick capable of connecting to a personal computer and outputting fingerprint data on a screen, or a memory embedded in a remote personal computer.

In addition, the door security management terminal 30 determines whether the capture data of the camera 8 capturing the visitor's image data, information on whether the first and second release conditions are input, and the received visitor's fingerprint data are human fingerprints. A monitor 34 for screen outputting the result information; An operation button 36 for a resident to input a first release signal; A buzzer 38 is provided for informing the occupants of the visitor's visit signal.

In addition, the door security management terminal 30 determines whether the first and second unlock conditions are input, determines whether the received fingerprint data is a normal person's fingerprint, and outputs the determination result information through a monitor. The control unit 44 is configured to control the door lock to be unlocked when the difference unlocking condition is input.

That is, when the visitor wears a glove or the like and scans a fingerprint through the doorbell signal input module 2, it may be determined that the fingerprint data is not human fingerprint data by analyzing the controller 44. The door security management terminal 30 is set not to transmit the unlock control signal to the digital door lock module 20 even if the primary unlock signal of the occupant is received.

At this time, the technology for analyzing whether the fingerprint data of a person is a very common known technology in the fingerprint data analysis, so a detailed description thereof will be omitted.

In addition, the controller 44 drives a timer (not shown) when outputting a guide voice requesting a fingerprint input. If a fingerprint is not input within a preset time, the controller 44 captures a visitor image by the camera 8 and stores it, and unlocks the door lock. The control schedule is set so that no signal is generated.

The function of the control unit 44 is that even if a visitor suspected of a crime is hesitant to input a fingerprint or abandons entry into the room due to a voice prompt to enter a fingerprint, the visitor may be helpful for further investigation. This is to secure the image.

The controller 44 is configured to store the corresponding storage time information in association with the fingerprint data when storing the fingerprint data input by the visitor. Therefore, it is possible to secure the access time of the visitor early in case of various safety accidents in the future.

In this case, the temporary memory 42 may be a portable USB memory stick capable of connecting a personal computer (not shown) to output fingerprint data on the screen.

On the other hand, the visitor's fingerprint data received by the door security management terminal 30 is temporarily stored in the temporary memory 42, and is automatically transmitted to a remote personal computer (not shown) at a predetermined time interval, so that the personal computer. The scanned fingerprint data may be stored in the internal memory of the PC. In this case, the temporary memory 42 is replaced by a memory inside a remote personal computer, and the communication module of the door security management terminal 30 is connected to the personal computer through a wired line such as RS-232. Right.

In addition, the control unit 44 preferably deletes the stored visitor's fingerprint data automatically after a predetermined set time elapses.

The function and operation of the door fingerprint storage system interlocked with the digital door lock according to the embodiment of the present invention having the above-described configuration will be described in detail with reference to the accompanying drawings.

Figure 4 is a flow chart showing the signal flow of the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention.

First, the operation and function through the door fingerprint storage system interlocked with the digital door lock according to an embodiment of the present invention, when the visitor visits, the visitor is a signal provided in the doorbell signal input module (2) When the visit signal (which is the doorbell signal) is input through the generator 6, the visit signal is output to the door security management terminal 30. At this time, the image data of the camera 8 together with the visit signal is used to secure the door. It may be transmitted to the management terminal 30, the camera 8 does not operate, the occupant may directly check the visitor through a sight hole (not shown) provided in the door.

The resident can confirm that the visitor visited by driving the buzzer 38 of the door security management terminal 30, and can check the visitor's image data through the monitor 34, or the visitor through the viewing window provided in the door. You can check.

Therefore, the resident can input the primary unlocking signal through the operation button 36, the control unit 44 of the door security management terminal 30 determines whether the primary door lock release signal is applied.

When the occupant's door lock primary release signal is applied, the door security management terminal 30 extracts the fingerprint input request guide voice embedded in the main memory 40 to open the speaker 10 of the doorbell signal input module 2. Output through

At the same time, the door security management terminal 30 drives a timer.

When a visitor who is requested to input a fingerprint inputs his fingerprint through the fingerprint scan unit 12, the scanned fingerprint data is transmitted to the door security management terminal 30, and the door security management terminal 30 is a temporary memory. Scan fingerprint data is temporarily stored in 42.

In this case, when the door security management terminal 30 is connected to a remote personal computer (not shown), the door security management terminal 30 does not store the scanned fingerprint data of the visitor in the temporary memory 42. The fingerprint data can also be stored in a memory built into a remote personal computer.

Meanwhile, the door security management terminal 30 receives the scanned fingerprint data and then determines whether the fingerprint data is human fingerprint data. That is, if the visitor scans while wearing gloves, since the transmitted fingerprint data does not include ridges and feature points, the door security management terminal 30 determines whether the ridges and feature points are included in the scanned fingerprint data. If it is not a human fingerprint or an abnormal fingerprint, the door lock is in a corrected state.

If the fingerprint is normal, the door security management terminal 30 transmits the final door lock release signal to the digital door lock module 20 so that the door lock can be unlocked.

On the other hand, if the fingerprint data of the visitor is not input, the door security management terminal 30 determines by checking the time calculation state of the timer whether the preset input time is exceeded, and if the set input time is exceeded, The door security management terminal 30 determines the visitor as a criminal predictor and captures the visitor's image data that may be used for future investigation. That is, the door security management terminal 30 transmits a camera control signal to the doorbell signal input module 2, and the doorbell signal input module 2 drives the camera 8 provided on the front to secure an image of the visitor. do.

The secured visitor image is authorized to the door security management terminal 30, and the door security management terminal 30 stores the visitor image in the temporary memory 42.

On the other hand, after the door lock is released, the door security management terminal 30 determines whether the setting date has elapsed, and when the setting date has elapsed, the visitor inputs and deletes the cumulatively stored fingerprint data from the storage priority order. If the signal for maintaining the fingerprint data is previously input, the door security management terminal 30 maintains the storage of the fingerprint data.

On the other hand, the door fingerprint storage system and the method interlocked with the digital door lock according to an embodiment of the present invention is not limited to the above embodiment, but various modifications can be made within the scope without departing from the technical gist.

2: doorbell signal input module, 6: signal generator,
8: camera, 10: speaker,
12: fingerprint scan unit, 20: digital door lock module,
22: door lock drive unit, 30: door security management terminal,
40: main memory, 42; temporary memory,
44: control unit.

Claims (12)

A doorbell signal input module for inputting a visit signal of the visitor and transmitting the scanned fingerprint data to the door security management terminal according to the guidance voice;
A digital door lock module configured to drive the door lock by receiving the unlocking and visibility control signals of the door lock from the door security management terminal;
It is determined whether the first unlocking condition generated by the occupant is input by the visitor's visit signal from the doorbell signal input module, and whether or not the second unlocking condition is input according to whether the visitor inputs fingerprint data and corrects the door lock in the digital door lock module. Or a door security management terminal configured to transmit a lock control signal so that the fingerprint of the visitor can be stored by the resident's home before the door lock is unlocked. The door fingerprint storage system of claim 1, wherein the doorbell signal input module further includes a speaker that outputs a guide voice for requesting a fingerprint input on a front surface of the doorbell signal input module. The apparatus of claim 1, wherein the doorbell signal input module comprises: a camera for capturing image data of a visitor therein;
A fingerprint scan unit for scanning fingerprint data of the visitor;
A signal generator for notifying the resident whether or not the visitor is visiting;
Door fingerprint storage system interlocked with the digital door lock, characterized in that it comprises a communication module for transmitting a signal or fingerprint data input by the visitor to the door security management terminal. The main memory of claim 1, wherein the door security management terminal stores door lock driving information according to whether first and second unlocking conditions are input, guide voice data requesting a fingerprint input of a visitor, and setting information for data management. Wow;
The door fingerprint storage system interlocked with the digital door lock further comprises a temporary memory for storing the visitor's fingerprint data and the visitor's image data received from the doorbell signal input module. The method of claim 1, wherein the door security management terminal determines whether the first and second unlock conditions are input, determines whether the received fingerprint data is a fingerprint of a normal person, and outputs the determination result information through a monitor. Door fingerprint storage system interlocked with the digital door lock, characterized in that it further comprises a control unit for controlling the door lock is unlocked when the second unlocking condition is input. The door fingerprint storage interlocked with the digital door lock according to claim 4, wherein the temporary memory is a portable USB memory stick capable of connecting a personal computer to print fingerprint data on a screen or a memory embedded in a remote personal computer. system. The apparatus of claim 5, wherein the controller drives a timer to output a guide voice requesting a fingerprint input, and if a fingerprint is not input within a set time, captures and stores a visitor image with a camera, and controls not to generate a door lock release signal. Door fingerprint storage system interlocked with the digital door lock, characterized in that the schedule is set. The door fingerprint storage system interlocked with the digital door lock according to claim 5, wherein the control unit automatically deletes the stored visitor's fingerprint data when a predetermined time elapses. A first step of receiving, by the door security management terminal, a visit signal of the visitor;
A second step of determining whether a primary release signal of a resident is applied;
Outputting a guide voice requesting a fingerprint input of the visitor;
A fourth step of the door security management terminal starting the timer;
A fifth step of determining whether fingerprint data of the visitor, which is the second unlock signal, is received;
A sixth step of analyzing the received fingerprint data to determine whether it is human fingerprint data;
A seventh step of temporarily storing the visitor's fingerprint data in a memory;
Door fingerprint storage method interlocked with the digital door lock, characterized in that the eighth step of releasing the digital door lock. 10. The method of claim 9, wherein the fifth step comprises: photographing the visitor's image data by driving a camera when the visitor's fingerprint data is not inputted so that a predetermined time elapses;
Door fingerprint storage method interlocked with the digital door lock, characterized in that further comprising the step of temporarily storing the image data of the visited visitors. 10. The method of claim 9, further comprising: determining whether a setting time for data deletion has arrived after the eighth step;
When the data deletion time arrives, door fingerprint storage method interlocked with the digital door lock, characterized in that it further comprises the step of automatically deleting the fingerprint data or image data of the visitor. The digital door lock of claim 11, further comprising a process of processing the door security management terminal to maintain the storage of fingerprint data if a command signal for maintaining fingerprint data is input before data deletion. Fingerprint storage method linked.

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