KR101674053B1 - Apparatus and method for security entrance - Google Patents

Abstract

The present invention relates to an access control device and an access control device for providing a user convenience, a simplified authentication procedure, and a high security reliability by blocking unauthorized use by using an authentication means of another person by additionally authenticating whether the authentication means is correctly used or not, The present invention relates to a method for providing a method of controlling an image pickup apparatus, including an image pickup processing unit for detecting an approaching person approaching from outside the door using an infrared sensor, an external input unit for inputting unique information for accessing, A wire / wireless interface unit connected wirelessly to receive the image data photographed by the photographing processing unit and the unique information data input from the external input unit; and a control unit which detects the entire body image of the passenger from the image photographed by the photographing processing unit, To calculate the total height and width dimensions A signal processing unit for converting data expressed in a digital format through A / D conversion based on the unique information input from the external input unit into discretized data by a sampling process; And width size of the user information stored in advance in the storage unit to detect the one user having the highest similarity and to extract the unique information previously given to the detected user from the user- A matching unit for comparing the discretized data processed by the signal processor with the discretized data processed by the signal processor; Authenticates the detected user based on the comparison difference in width size, An authentication unit for performing unique information authentication using the unique information given to the authenticated user only for the authenticated user; and an authentication unit for storing the total height and width size of the user whose user authentication and unique information authentication has been confirmed by the authentication unit, And a user who is authenticated through the matching unit and the authentication unit is detected. If the detected user is in the current home (office) And a door lock unit for locking the door lock when the door locker is authenticated through the authentication unit, so that the door lock unit can be opened and closed, And a door driving unit for opening and closing the door, A can consists to a power supply that supplies.

Description

[0001] Apparatus and method for security entrance [0002]

The present invention relates to an access control apparatus and method thereof, and more particularly, to an access control apparatus and method for preventing unauthorized use of an authentication means of another person through recognition by a user.

In general, the access control system is a system that safely protects the main facilities, personnel, and documents against external intrusion or destructive effects, and the effect of preventing unauthorized persons from performing tasks and places requiring restricted access.

The access control device is mainly used with a key system, a key system using a magnet, and a keypad system.

Recently, access control devices have been used by many people due to the importance of crime and security, and user convenience, simplified authentication procedures and high security reliability have been actively studied. Accordingly, the access control system may use a card key using a magnetic card or an integrated circuit card (ICC) in response to such a requirement or the like, or may use fingerprint recognition, iris recognition, And keys using biometrics technology such as recognition are being developed.

Meanwhile, in recent years, with the rapid spread of mobile terminals, most people always have mobile terminals. Mobile terminals are becoming more and more common in the form of combining smart cards and mobile terminals, starting with the first generation analog service and going through the second generation, the second generation, and the third generation.

The smart card is also called a universal integrated circuit card (UICC). It has a microprocessor, memory, a card operating system (COS), a security function, and an EEPROM. Computer refers to a card in the form of a COB (Chip On Board).

However, in the case of access authentication using a magnetic card or an integrated circuit card in a conventional access control device, when a user loses a card key, a third party who acquires the lost card key uses an access control device You can illegally enter the place where it is installed. Also, in the case where the access is authenticated by inputting the password, when the password is exposed to the other person, the third party can enter the place where the access control device such as office and home is installed by inputting the exposed password.

As described above, the problem with the conventional access control device is that any person who knows only the magnetic card and the integrated circuit card or the password can invade the place where the access control device such as the office and the home is installed by anyone, do.

On the other hand, although the method using the biometric technique solves such a problem, it is impossible to select the perfect person 100% by the fingerprint recognition, so that it is difficult to reject the rightful person or allow the unauthorized person to access There is a possibility to commit. In addition, in the case of biometrics technology, the amount of data increases as the accuracy increases, and it takes a considerable amount of time to compare the data to authenticate the biometrics. In addition, expensive equipment for biometrics should be used Thereby causing an economic burden on the user.

Patent Registration No. 10-1086236 (registered date Nov. 17, 2011) Open Patent Publication No. 10-2012-0045668 (Published Date May 05, 2012)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for preventing unauthorized use by using authentication means of another person, And to provide an access control device and method thereof for providing high security and reliability.

Other objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an access control apparatus including an imaging processor for detecting an accessing person approaching from outside the door using an infrared sensor and capturing an image, an external input unit for inputting unique information for access, A wired / wireless interface unit connected to the photographing processing unit and the external input unit through a wired or wireless connection to receive image data photographed by the photographing processing unit and unique information data input from the external input unit; An image processing unit for detecting an entire body image and calculating a total height and a width size by using the detected image; and an image processing unit for sampling data expressed in digital format through A / D conversion based on the unique information inputted from the external input unit A signal processor for converting the data into discrete data, Comparing the total height and the width size calculated by the processing unit with user information that can be accessed and stored in advance in the storage unit to detect one user having the highest similarity, A matching unit for comparing the specific information given in advance with the discretized data processed in the signal processing unit to check whether the identical information is identical or not; An authentication unit for authenticating a detected user based on a comparison of the total height and width size of the passengers and performing unique information authentication using the unique information given to the authenticated user only for the authenticated user; The total height of users who have been authenticated by user authentication and unique information and A width correction unit that compares the width size with the total height and width size of the user stored in the storage unit and corrects the width size to an average value of the difference; and a user who is authenticated through the matching unit and the authentication unit, A position confirming unit for confirming whether the user is located in the current house (office) or not, and transmitting the position confirming information to the matching unit; and a lock unit for locking the door lock And a power supply unit including the door driving unit and supplying power to the entire configuration of the access control apparatus.

Preferably, the external input unit includes a keypad for inputting a password, a magnet key, and a card key, a short-range connection device connected to the smart card, the mobile terminal, and a fingerprint, And a biometric reader for recognizing the biometric information.

Preferably, the image processing unit includes an image capturing unit that captures an entire image of the user from the image captured by the image capturing processing unit, an outline detecting unit that detects an outline line of the entire image captured by the image capturing unit, A height calculating unit for calculating a height of the entire image using a contour line and a width calculating unit for calculating the largest width and the smallest width of the entire image using the contour line detected by the contour detecting unit .

Preferably, the width calculating unit calculates the largest width and the smallest width among the plurality of widths calculated from the entire image.

Preferably, the authentication unit compares each difference between the user information (key, width) of the user stored in the storage unit and the total height and width size calculated by the image processing unit with each preset threshold value, And a unique information authentication unit for authenticating the unique information identified in the matching unit in the matching unit only for the user authenticated by the user authentication unit.

Preferably, the matching unit excludes the user from the authentication object if the user is located in the current home (office) based on the location information transmitted from the location confirmation unit before performing the user authentication or the unique information authentication .

According to an aspect of the present invention, there is provided an access control method comprising the steps of: (A) inputting unique information for access through an external input unit, using an image photographed by a photographing processing unit installed outside a door, A step of detecting a total body image of a person and calculating a total height and a width size using the detected image; and (B) comparing the total height and width size The method comprising the steps of: detecting one user having the highest similarity in comparison with user information that can be accessed and performing user authentication through an authentication unit; and (C) if the user authentication is confirmed, (D) detecting the information and comparing it with the unique information received from a visitor to perform unique information authentication; A step of opening the door by driving the door lock unit to be unlocked through the door driving unit when the unique information authentication is confirmed; (E) Comparing the height and the width of the user with the total height and width of the user stored in the storage unit and calculating the difference; and (F) comparing the calculated user information stored in the storage unit with the average of the calculated differences The method comprising the steps of:

Preferably, the unique information includes password, electrical and electronic information, and biometric information.

Preferably, the step (A) includes the steps of capturing an entire image of a user in an image captured through an image capturing unit, detecting an outline line of the captured whole image through an outline detecting unit, Calculating a height of the entire image using the contour line, and calculating a maximum width and a minimum width of the entire image using the contour line detected through the width calculating unit .

Preferably, the step (B) includes the steps of: calculating a difference between the user information (key and width) of the user stored in the storage unit and the total height and width size calculated by the image processing unit; Comparing the height difference, the minimum width, and the maximum width difference with each threshold value that is set; checking whether the height difference, the minimum width, and the maximum width difference are less than preset thresholds; and if all of the thresholds are confirmed, Authenticating the user as a detected user; and excluding the detected user from the target if the confirmation of the threshold is not performed.

Preferably, the step (B) includes the steps of: calculating a difference between the user information (key and width) of the user stored in the storage unit and the total height and width sizes calculated by the image processing unit; Comparing the height difference, the minimum width, and the maximum width difference with each threshold value that is set; checking if the height difference, the minimum width, and the maximum width difference are less than preset threshold values; The method comprising the steps of: confirming whether the user is located in the office (office) or not, checking whether the user is present in the office (office) if all the confirmation of the threshold is made and the user is not in the office If no confirmation is made of any of the checks of the threshold, or if it is determined that the user is in the home (office) Including the step of: the user except in that the target is characterized in that formed.

The access control apparatus and method according to the present invention as described above have the following effects.

First, it is possible to obtain the effect that the security of the access can be maintained by determining whether the access is authorized or not by accessing the authentication means through the recognition by the user, and by blocking the access when not authenticated.

Second, although the two-step authentication is performed, the per-user recognition is automatically performed without additional operation of the user, so that the authentication procedure can be simplified and the convenience of the user can be provided.

Third, by detecting only the silhouette of the user rather than the detection and matching process of the feature points using the per-user recognition method and using the size (area, key, etc.) comparison, the time and calculation amount required for recognition are significantly shortened Effect can be obtained.

Fourth, there is an effect that it is possible to minimize errors due to per-user recognition by correcting each time a user's outline change is authenticated due to user's growth and seasonal changes.

1 is a block diagram showing a configuration of an access control apparatus according to an embodiment of the present invention;
FIG. 2 is a block diagram showing a detailed configuration of the image processing unit in FIG.
3 is a flowchart for explaining an access control method according to an embodiment of the present invention.
FIG. 4 is a flowchart for explaining a method for calculating the total height and width sizes using the image detected in FIG.
5 is a flowchart for explaining a method for performing user authentication in detail in FIG.

Other objects, features and advantages of the present invention will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an access control apparatus and method according to the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It is provided to let you know. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that water and variations may be present.

1 is a block diagram illustrating a configuration of an access control apparatus according to an embodiment of the present invention.

1, the access control device includes a photographing processing unit 10, an external input unit 20, a wired / wireless interface unit 30, an image processing unit 40, a signal processing unit 50, a matching unit 60, A storage unit 70, an authentication unit 80, an image correction unit 90, a position confirmation unit 100, a door driving unit 110, and a power source unit 120.

The photographing processing unit 10 detects an approaching person approaching from outside the door using an infrared ray sensor and photographs the image. At this time, the photographing processing unit 10 may be constituted by a general camera, but it may be constituted by an infrared camera so that only a body type of a visitor can be photographed.

The external input unit 20 is a means for inputting unique information for access. At this time, the external input unit 20 includes a keypad for inputting a password, a magnet key, a card key, etc., a short-range connection device connected to a smart card, a mobile terminal or the like through a short-range wireless communication method, And a biometric reader for recognizing biometric information such as voice.

The wired / wireless interface unit 30 is connected to the photographing processing unit 10 and the external input unit 20 in a wired or wireless manner and transmits the image data photographed by the photographing processing unit 10 and unique information data input from the external input unit 20 Receive. At this time, the wired / wireless interface unit 30 may be connected to the imaging processing unit 10 and the external input unit 20 through any means including infrared communication, Bluetooth, WiFi, wired / wireless Internet, mobile communication network and the like.

The image processing unit 40 detects an entire body image of a visitor from the image photographed by the photographing processing unit 10, and calculates a total height and a width size using the detected image.

2 is a detailed block diagram showing the configuration of the image processing unit. As shown in FIG. 2, the image capturing unit 41 captures an entire image of a person from an image captured by the image capturing processing unit 10, A contour detection section 42 for detecting contour lines of the entire image captured by the capture section 41; a height calculation section 43 for calculating the height of the entire image using the contour lines detected by the contour detection section 42; And a width calculating unit 44 for calculating the largest width and the smallest width of the entire image by using the outline line detected by the outline detecting unit 420.

At this time, the height calculating unit 43 compensates for the distortion of the image photographed by the installation height of the photographing processing unit 10, thereby calculating a more accurate key of the guest. For reference, the image compensation according to the bending of the lens and the photographing height is already known, and a detailed description thereof will be omitted. The width calculating unit 44 receives the contour lines such as the front face and the side face of the passengers as the continuously captured images are input continuously after the photographed image inputted from the photographing processing unit 10 detects the passengers, It will produce a number of widths of different sizes. Accordingly, the width calculating unit 44 calculates the largest width and the smallest width among the plurality of widths calculated from the entire image.

The signal processing unit 50 converts the data represented in the digital format through the A / D conversion based on the unique information input from the external input unit 20 into the discretized data by a sampling process. At this time, the signal processing unit 50 converts unique information such as a password, a magnetic key, a card key, a smart card, a mobile terminal and biometric information into discretized data for comparison with stored authentication information .

The matching unit 60 compares the total height and the width calculated in the image processing unit 40 with the user information that is stored in advance in the user information DB 71 of the storage unit 70, And outputs the discrete data previously given to the detected user among the user specific information stored in advance in the unique information DB 72 of the storage unit 70 to the discretized data processed by the signal processing unit 50 And the identity of the user. At this time, the number of users detected by the matching unit 60 may be set to a plurality of numbers according to the number of users who can access. However, as the number of users to be detected increases, the number of comparisons to confirm the identity increases, and the smaller the number of users, the shorter the processing time.

The authentication unit 80 stores the total height and width of the user detected by the matching unit 60 stored in the user information DB 71 of the storage unit 70 and the size and width of the user calculated by the image processing unit 40 Authenticates the detected user based on the difference in the total height and width of the passenger, and performs unique information authentication using the unique information given to the authenticated user only for the authenticated user.

At this time, the authentication unit 80 stores the difference between the user information (key and width) of the user stored in the user information DB 71 and the total height and width sizes calculated by the image processing unit 40, A unique authentication unit 81 for authenticating the detected user in comparison with the threshold value, and a unique information authentication unit 80 for authenticating the unique information identified in the matching unit 60 only in the user authenticated by the user authentication unit 81, (82). When comparing the difference with the width size, the user authentication unit 81 increases the accuracy of user authentication by comparing both the largest maximum width calculated by the width calculating unit 44 and the smallest minimum width calculated by the width calculating unit 44 .

The image correcting unit 90 stores the total height and width of the user whose user authentication and unique information authentication has been confirmed by the authentication unit 80 in the user information DB 71 stored in the user information DB 71 of the storage unit 70 And stores it in the user information DB 71 of the storage unit 70. In the user information DB 71 of the storage unit 70, This minimizes errors due to per-user recognition by correcting each time a user changes his / her outline due to user's growth and seasonal changes.

The location checking unit 100 detects an authenticated access permitted user through the matching unit 60 and the authentication unit 80 and checks whether the detected user is located in the current house or office, And transfers the information to the matching unit 60. At this time, confirming the location of the user uses this information as it is possible to confirm whether or not the user enters or exits through the user authentication through the authentication unit 80 naturally.

Accordingly, if the user is located in the current home (office) before performing the user authentication or the unique information authentication, the matching unit 60 excludes the user from the authentication execution target. Accordingly, it is possible to eliminate unnecessary user authentication or unique information authentication, thereby providing a faster authentication procedure.

The door driving unit 110 drives the door lock unit to be unlocked to open the door when the entrance and exit desired by the authentication unit 80 is authenticated.

The power supply unit 120 includes a door driving unit 110 to supply power to the entire configuration of the access control device. At this time, the power unit 120 can be applied to both a PoE (Power Over Ethernet) system, a 12VDC system, and a battery system.

The operation of the access control device according to the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in FIG. 1 or FIG. 2 denote the same members performing the same function.

3 is a flowchart illustrating an access control method according to an embodiment of the present invention.

Referring to FIG. 3, when the unique information for entering and exiting is input through the external input unit 20 (S100), the image processing unit 40 uses the image photographed by the photographing processing unit 10 installed outside the door The entire body image of the user is detected, and the total height and width (maximum and minimum) sizes are calculated using the detected images (S200). The steps of S200 will be described in more detail below with reference to FIG.

Then, using the calculated total height and width size through the matching unit 60, it is compared with the user information that is stored in advance in the user information DB 71 of the storage unit 70, so that one user having the highest similarity And authenticates the user through the authentication unit 80 (S300). At this time, the user authentication is an operation for confirming whether or not the photographed person who is located at the entrance and is photographed as a user who can enter and exit is registered. The steps of S300 will be described in more detail below with reference to FIG.

When the user authentication is confirmed (S400), the unique information of the authenticated user stored in advance in the unique information DB 72 of the storage unit 70 is detected, and compared with the unique information inputted from the user, Information authentication is performed (S500). At this time, the unique information authentication is an operation for confirming whether the inputted unique information matches the stored unique information.

If the unique information authentication result is confirmed (S600), the door driving unit 110 drives the door lock unit to be unlocked to open the door (S800). On the other hand, if the unique information authentication is not confirmed (S600), it is notified that the authentication has failed using sound, light, or the like (S700).

The total height and width of the user whose user authentication and unique information authentication have been confirmed through the image correction unit 90 are stored in the user information DB 71 of the storage unit 70, And the difference is calculated (S900). The user information stored in the user information DB 71 of the storage unit 70 is corrected to an average value of the calculated differences (S1000). This minimizes errors due to per-user recognition by correcting each time a user changes his / her outline due to user's growth and seasonal changes.

As an example, in the case of children and adolescents in the growing period, the degree of growth is corrected as the height continuously grows. In addition, due to the seasonal changes, the change in the costume worn by the user is changed, while wearing the thin clothes in the summer, while wearing the thick clothes in the winter, the size of the entire width of the user is changed. At this time, the growth of children and adolescents at the growing stage does not show any rapid change, and in the case of the change of clothes caused by the seasonal change, the costumes are changed so as to become thicker or thinner gradually over the four seasons. Thus, an error caused by the user authentication can be prevented.

FIG. 4 is a flowchart for explaining a method for calculating a total height and a width size using the image detected in FIG.

Referring to FIG. 4, the step S200 will be described in more detail. The entire image of the passenger is captured from the image captured through the image capturing unit 41 (S201).

Next, the contour line of the captured whole image is detected through the contour detection unit 42 (S202).

Then, the height of the whole image is calculated using the contour line detected through the height calculating unit 43, and the maximum width and the smallest width of the entire image are calculated using the contour line detected through the width calculating unit 44 The minimum width is calculated (S203).

At this time, as the photographed image inputted from the photographing processing unit 10 detects a passenger, continuously captured images are input continuously, and contour lines such as the front face and the side face of the passenger are inputted, and a plurality of widths of different sizes are calculated . Accordingly, the width calculating unit 44 calculates the largest width and the smallest width among the plurality of widths calculated from the entire image.

5 is a flowchart illustrating a method for performing user authentication in detail in FIG.

5, the user information (key and width) of the user stored in the user information DB 71 of the storage unit 70 and the user information of the user stored in the image processing unit 40 (S301). ≪ tb > < TABLE >

Then, the calculated differences are compared with preset threshold values (S302).

As a result of the comparison, it is determined whether the height difference is smaller than the first threshold (S303), the minimum width difference is smaller than the second threshold (S304), and whether the maximum width difference is smaller than the third threshold (S305).

Then, it is checked whether the user detected through the storage unit 70 is located in the current house (office) or is out (step S306). At this time, confirming the location of the user uses this information as it is possible to confirm whether or not the user enters or exits through the user authentication through the authentication unit 80 naturally.

If it is determined that the first, second, and third thresholds are not checked and the user is not in the home (office), the current user is authenticated as the detected user in the storage unit 70 (S307). Accordingly, it is possible to eliminate unnecessary user authentication or unique information authentication, thereby providing a faster authentication procedure.

On the other hand, if one or more of the first, second, and third thresholds are not matched or the user is determined to be in the home (office), it is determined that the user is not the detected user in the storage unit 70, (S308). ≪ / RTI >

This process is continuously performed until all the users stored in the storage unit 70 are confirmed (S309).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications may be made without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Claims (11)

A photographing processor for detecting a person approaching from outside the door using an infrared sensor and taking an image,
An external input unit for inputting unique information for access,
A wired / wireless interface unit which is connected to the photographing processing unit and the external input unit by wire or wireless and receives the image data photographed by the photographing processing unit and the unique information data input from the external input unit,
An image processing unit for detecting an entire body image of a visitor in the image photographed by the photographing processing unit and calculating a total height and a width size using the detected image;
A signal processor for converting data expressed in a digital format through A / D conversion based on the unique information input from the external input unit into discretized data by a sampling process;
And comparing the total height and the width calculated by the image processing unit with user information that can be stored in advance in the storage unit to detect one user having the highest similarity, A matching unit for comparing the unique information given to the user with the discretized data processed in the signal processing unit to check whether the unique information is identical or not,
The detected user is authenticated based on the comparison of the total height and width size of the user detected by the matching unit and the total height and width size of the passenger calculated in the image captured through the image processing unit, An authentication unit for performing unique information authentication using the unique information given to the authenticated user;
The total height and width size of the user whose user authentication and unique information authentication are verified by the authentication unit is compared with the total height and width size of the user stored in the storage unit and stored as an average value of the difference in the storage unit An image correcting unit for correcting a total height and width of the user,
A location checking unit for detecting an authenticated accessable user through the matching unit and the authentication unit, checking whether the detected user is located in the current house (office) or not, and transmitting the location confirmation information to the matching unit;
A door driving unit for opening the door by driving the door lock unit to be unlocked when the entrance / exit door is authenticated through the authentication unit;
And a power supply unit including the door driving unit to supply power to the entire configuration of the access control apparatus,
At this time, the image processing unit
An image capturing unit capturing an entire image of a person on the image photographed by the photographing processing unit,
An outline detecting unit detecting an outline line of the entire image captured by the image capturing unit;
A height calculating unit for calculating a height of the entire image using the contour line detected by the contour detecting unit;
And a width calculating unit for calculating the largest width and the smallest width of the entire image using the contour line detected by the contour detecting unit. The apparatus of claim 1, wherein the external input unit
A keypad for inputting a password and making contact with a magnetic key and a card key,
A short-range connection device connected to a smart card and a mobile terminal through short-range wireless communication,
And a biometric reader for recognizing biometric information including a fingerprint, an iris, a vein on the hand, and a voice. delete The method according to claim 1,
Wherein the width calculating unit calculates the largest width and the smallest width among the plurality of widths calculated from the entire image. 2. The apparatus of claim 1, wherein the authentication unit
A user authentication unit for comparing the difference between the user information (key and width) of the user stored in the storage unit and the total height and width size calculated by the image processing unit, with each preset threshold value to authenticate the detected user;
And a unique information authentication unit for authenticating the unique information identified in the matching unit only to the user authenticated by the user authentication unit. The method according to claim 1,
The matching unit may exclude the user from the authentication object if the user is located in the current home (office) based on the location confirmation information transmitted from the location confirmation unit before performing the user authentication or the unique information authentication. Access control device. (A) When unique information for entrance and exit is input through the external input unit, the image processing unit detects the entire body image of the visitor using the image captured by the photographing processing unit installed outside the door, Calculating a width size,
(B) detecting one user having the highest similarity by comparing the calculated total height and width size with the user information stored in advance in the storage unit, and performing user authentication through the authentication unit Wow,
(C) detecting unique information of an authenticated user stored in advance in the storage unit when the user authentication is confirmed, comparing the unique information with information received from a user, and performing unique information authentication;
(D) opening the door by driving the door lock unit to be unlocked through the door driving unit when the unique information authentication is confirmed,
(E) comparing the total height and width size of the user whose user authentication and unique information authentication are confirmed through the image correction unit with the total height and width size of the user stored in the storage unit, and calculating the difference;
(F) correcting the user information stored in the storage unit as an average value of the calculated differences,
At this time, the step (A)
Capturing an entire image of a visitor in an image captured through an image capture unit;
Detecting a contour line of the captured whole image through a contour detection unit;
Calculating a height of the entire image using the contour line detected through the height calculating unit,
And calculating a maximum width and a minimum width of the entire image using the contour line detected through the width calculating unit. 8. The method of claim 7,
Wherein the unique information includes password, electrical and electronic information, and biometric information. delete 8. The method of claim 7, wherein step (B)
Calculating a difference between the user information (key and width) of the user stored in the storage unit and the total height and width size calculated by the image processing unit,
Comparing the calculated differences with preset threshold values,
Determining whether the height difference, the minimum width, and the maximum width difference are smaller than preset thresholds;
Authenticating the current user as a user detected in the storage unit when all of the thresholds are confirmed;
And excluding the detected user from the object if the confirmation is not made even if at least one of the confirmation of the threshold value is confirmed. 8. The method of claim 7, wherein step (B)
Calculating a difference between the user information (key and width) of the user stored in the storage unit and the total height and width size calculated by the image processing unit,
Comparing the calculated differences with preset threshold values,
Determining whether the height difference, the minimum width, and the maximum width difference are smaller than preset thresholds;
Confirming whether the user detected through the storage unit is located in the current house (office) or out of the house,
Authenticating the current user as a detected user in the storage unit if all of the thresholds are verified and the user is determined not to be in the home (office)
And excluding the detected user if the confirmation is not made or the user is determined to be in the home (office).

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