KR100515688B1 - Method for controlling digital door-lock - Google Patents

Abstract

The present invention relates to a method for controlling a digital door lock, and an object of the present invention is to prevent a password from being recognized even when a password input process is exposed to another person.

The digital door lock control method according to the present invention includes (S100) a password input step of dividing a password into two or more parts and inputting a password divided into a plurality of parts into a predetermined password input digit with a plurality of imaginary numbers; (S110) a comparison step of ignoring the imaginary numbers entered between the password input digits among the passwords input in the password input step, recognizing each of the passwords entered at the password input digit as a password, and comparing the password with the stored password; (S120) If the input number and the password compared in the comparison step match the unlock through the drive unit, otherwise it comprises the step of maintaining the lock.

Description

Digital door lock control method {METHOD FOR CONTROLLING DIGITAL DOOR-LOCK}

The present invention relates to a digital door lock control method, and more particularly, to a digital door lock control method that prevents another person from stealing a password even when a password input process is exposed to another person.

As the industrial society develops, in order to solve the inconvenience of carrying / lost a key and to prevent theft, a user who authenticates himself or herself by entering a password consisting of 4 or 8 or more digits or letters Technology is on the rise.

The technology of authenticating a valid user by entering a password is applied to all fields such as digital door lock, cash withdrawal / withdrawal using ATM, internet banking, and credit card payment.

Hereinafter, a technology using a password will be described in more detail by taking a digital door lock as an example.

Generally, a door lock device is installed inside the building (indoor) to prevent illegal entry of outsiders. Such a door lock device is not only simple in structure but also has some common sense about the door lock. It can be easily resolved and has the disadvantage of poor security.

In order to solve this drawback, a digital door lock device of a password input method.

The digital door lock device has a locking function in which the locking member of the key bundle is inserted into the latch groove of the door outer frame to keep the door locked and the unlocking function of releasing the locking state by releasing the locking member from the latch groove of the door outer frame. It consists of a.

Meanwhile, as described above, the operation of the conventional door lock device for releasing the locking member by operating the locking member by operating on the latch groove of the door outer frame is as follows. First, when the user selects a password through the key button of the outer body installed on the outdoor side of the door, the control unit compares the input number with the stored password, and if they are correct, drives the driving unit to open the door, and if they do not match, the door Will remain locked.

However, the digital door lock control method according to the prior art has the following problems.

In the case of the password input method, the password usually consists of 4 to 8 digits, and since the password reading unit can read only a predetermined number of passwords, the user must enter a password of a predetermined number. Therefore, because the password is simple, when the other person sees the password input process around, the input key can be easily confirmed, so that others can unlock the digital door lock and enter the room.

At this time, by changing the password from time to time to prevent the theft of others, it is difficult to change the password from time to time because it is difficult to change the password, there is no way to prevent theft from other people.

In addition, due to user's negligence, the password for unlocking the digital door lock may be lost. If the password is lost, the door cannot be opened without disassembling / breaking the digital door lock.

An object of the present invention is to provide a digital door lock control method that does not allow a user to recognize a password even when the password input process is observed around the user.

Another object of the present invention is to enable a door to be opened without disassembling / breaking the digital door lock when the password is lost.

In accordance with another aspect of the present invention, there is provided a digital door lock control method including: a password input step of inputting a password divided into two or more parts (S100) and having a plurality of imaginary numbers between them; (S110) a comparison step of comparing imaginary numbers input between password input digits among the input numbers input in the password input step and comparing the input numbers respectively input to the password input digits with the stored password; And, if the input number and the password matched in the comparing step (S120) is characterized in that it comprises the step of unlocking through the drive unit, otherwise maintaining the lock.

In addition, the digital door lock control method according to the present invention comprises the steps of: locking the digital door (S200); (S220) inputting an encryption number for changing the password through the key input unit; And (S230) generating a new password by calculating the encryption number inputted in the step (S220) and the existing password according to the password change rule set in the controller, and maintaining the generated password for one time. Characterized in that made.

In addition, the method for controlling a digital door lock according to the present invention includes: (S300) a step of allowing a user to input a password confirmation key after confirming a user when a password is lost; Encrypting the password of the user identified in the step S300; (S320) informing the user of the encrypted code in the step (S310); (S330) transmitting the encryption code obtained in the step (S320) to the manager; (S340) decrypting the encryption code received from the user in the step (S330) with a password; And, (S350) characterized in that it comprises the step of transmitting the password decrypted in the step (S340) to the user.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

Before describing the digital door lock control method according to the present invention, a digital door lock control system to which the digital door lock control method according to the present invention is applied will be described.

As shown in FIG. 1, the system to which the digital door lock control method according to the present invention is applied includes an input number input through a memory unit 10, a password input unit 20, and a password input unit 20 in which a password is stored. Comparing unit 30 for comparing the password stored in the memory unit 10, and if the input number and the password coincides with the unlocking through the drive unit 40, otherwise processing unit 50 is maintained.

The memory unit 10 stores a password of 4 to 8 digits, which is usually determined by the user.

The password input unit 20 may be a combination of numbers and special symbols, and if the password is, for example, a four-digit number, a password and an imaginary imaginary number when the password is input to hide the password (where the imaginary number is arbitrary regardless of the password). And a password to hide the password). As a combination of passwords, passwords can be divided into two or more parts and an imaginary number can be entered between them. For example, four digits of the password are divided into the first digit and the remaining three digits. When the password is input, the first number is first input, a plurality of imaginary numbers are input, and the remaining three digits are finally input. For example, if the password is 1,2,6,7, the user first selects 1, the first digit of the password, and the user selects any number of imaginary numbers 3,7,4,9,8,2,7, Select 3, 9, 3 consecutively, and finally select 3, 2, 6, and 7 consecutive passwords.

The comparison unit 30 ignores the imaginary number among the input numbers input by the user, extracts only the number input in the place of the password, and compares it with the password stored in the memory unit 10.

The processing unit 40 releases the lock state through the driving unit 50 when the input number and the password matched by the comparison unit 30 match, otherwise maintains the lock state.

The digital door lock control system according to the present invention may further include a password change unit 60 for changing the password.

The password changing unit 60 generates a password according to a user's selection, and stores the changed password only once. As a password change method, a password change rule, for example, arithmetic operation or one of various methods is set in the password change unit 60. When the user selects an encoding terminal number for encoding through the password input unit 20, For example, a new password is generated by calculating the encoding number selected in the initial password using the set password change rule.

After changing the password, the user can select the changed password to unlock the password, and once the changed password is used, the password is automatically changed to the initial password.

<Example 1>

According to the digital door lock control method according to the first embodiment, a password consisting of a plurality of digits is divided into at least two parts, and a plurality of divided parts are input with a plurality of imaginary numbers between them, and a password is input among passwords inputted through a password input unit. It is possible to hide the password by considering the number entered in the designated place as a password, comparing it with the stored password, and then determining the rule / release of the door.

Hereinafter, the digital door lock control method according to the present embodiment will be described with reference to FIG. 2.

(S100) Enter the password. The user enters a fixed password to unlock the digital door lock. The password can consist of 4 digits, press the first digit of the password when entering the password so that others cannot verify the password, select an imaginary imaginary number that is irrelevant to the password, and then enter the second, third and last of the password. Select a number. For example, if the password is 1,2,6,7, 1,3,7,4,9,8,2,7,3,9,3,2,6,7 is input when the password is input. In other words, the password input digits are the first digit, the first, second, and third digits from the last, and the password can be entered in this digit. If the controller has four digits, the first digit of the number entered by the user. In other words, the number entered from the last three digits is generated as a series of numbers and compared with the stored password. Here, in dividing the four-digit password, the password is divided into the first digit and the remaining three digits, but the method of dividing the password is not limited to this, and the four digits can be divided into two digits, or three and one digits. You can also share.

(S110) Compare the input password and the stored password. Only the number entered in the designated place for password input, that is, the number entered in the first, last, first, second and third digits of the input number, ignoring the imaginary number, the input number and memory part Compare the password stored in (10).

(S120) The door is determined to be unlocked. If the input number and password match in the comparing step (S110), the lock is released, and if not, the routine is input again. When the lock is unlocked, the text message or voice message “open” or voice message and ring tone may be displayed. If the password does not match, the text or voice message and ring tone “Retype password” will be displayed. Can be. If the password is wrong more than 3 times, it is judged as the other person who is not authorized to unlock, so that it cannot be released for a certain period of time, or an emergency bell is sounded.

<Example 2>

According to the method for controlling a digital door lock according to the present embodiment, the password can be changed and used by a user by a simple operation of operating a button. In this case, the changed password can be initialized to an initial password after being used only once.

As shown in Figure 3, the password can be changed by the following method.

(S200) Rub the digital door. After exiting the room, the door lock is automatically locked when the door is closed.

(S210) Change the password. The user selects a password change button such as (*) or (井) when temporarily changing the password. If you do not select the Change Password button, the password will remain in its initial state. The Change Password button is optional.

(S220) If the password change button is selected in the step (S210), a text message or voice message " Encryption code input " is output on the LCD window, and the user selects one terminal number as an encryption code.

(S230) Change the password. The password change unit 60 generates a new password by calculating the number inputted by the encryption code when changing the password with the existing password by the set password change law. The password change law is released in the product, and arithmetic operation or various methods can be used. For example, if the plus (+) is set as the password change rule, if the user selects 5 as the encryption code, the password change part is the initial password 1,2,6,7 plus 6 to each number 6, Save and change your password to 7,1,2. Here, 6,7 becomes 11, 12 instead of the terminal number when 5 is added. In the case of two digits, the 10 digit is ignored and changed to the terminal number.

In this way, when the password is changed, the initial password and the changed password are temporarily stored, and the user must select the change password to unlock the lock.

Since the changed password is a one-time use, it cannot be used as a password after the user has used it once. Therefore, even if another person checks the password, the other person cannot unlock the lock.

<Example 3>

In addition, according to the digital door lock control method according to the present embodiment, when the user forgets the password, the password can be checked, and the method is as shown in FIG. 4.

(S300) User Identification. When the forgot password is received, the user and the administrator confirm the user by phone, and then allow the user to input the password confirmation key through the key input unit. For example, identity verification can be done through verification of the user's personal information, questions and answers specified for identity verification, and when the identity is verified through this process, the administrator can provide the user with the password verification key through the key input section. To be entered. Here, the password confirmation key may be a key set in the key input unit, or may be a key that the administrator arbitrarily informs the user.

(S310) The user's password is encrypted. When the user inputs the password confirmation key in step S300, the controller embedded in the digital door lock encrypts the password. The password encryption law is released in the product, and there are four methods for encrypting the password. For example, when the encryption method is set to XOR (exclusive or), the password and password are generated as encryption codes. The encryption code can be obtained by converting the encryption code values into hexadecimal numbers and XORing the two values. For example, encrypting XOR with password 1267 to 100 gives 6097. In other words, 6097 becomes an encryption code.

(S320) Notify the user of the encryption code. The encryption code generated in step S310 may be displayed as a text message, a voice message, or a ringtone on the LCD screen of the digital door lock.

(S330) Send to the encryption code manager. The user informs the administrator of the encryption code output in step S320.

(S340) Encryption code decryption. The administrator decrypts the encryption code received from the user in step S330 to generate a password. For example, XORing the encryption code 6097 back to 100 yields 1267.

(S350) Send to password user. The administrator informs the user of the password generated by decrypting the encryption code in step S340.

Although the present invention has been described so far as being limited to the digital door lock, the technology according to the present invention is not limited to the digital door lock, and can be used in all technical fields that allow use by inputting a password.

As described above, according to the method for controlling the digital door lock according to the present invention, the number input by the user is combined with a specified password and an imaginary number for hiding the password, so that even if another person sees the password input process, the password cannot be recognized.

In addition, the password can be changed by a simple operation. Since the changed password is a one-time one, even if another person confirms the password, the password is already changed again so that the password cannot be recognized, thereby preventing intrusion from others.

In addition, when the password is lost, the user can unlock the door lock without breaking the door lock by notifying the right user.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

1 is a block diagram of a system to which the digital door lock control method according to Embodiment 1 of the present invention is applied.

2 is a flowchart of a digital door lock control method according to Embodiment 1 of the present invention;

3 is a flowchart of a digital door lock control method according to Embodiment 2 of the present invention;

4 is a flowchart showing a digital door lock control method according to Embodiment 3 of the present invention.

<Description of the symbols for the main parts of the drawings>

10: memory part, 20: password input part

30: comparison unit, 40: processing unit

50: drive unit, 60: password change unit

Claims (5)

delete delete delete delete  (S300) after confirming the user when the password is lost, allowing the user to input a password confirmation key; Encrypting the password of the user identified in the step S300; (S320) informing the user of the encrypted code in the step (S310); (S330) transmitting the encryption code obtained in the step (S320) to the manager; (S340) generating a password by decrypting the encryption code received from the user in the step (S330); And, (S350) In the digital door lock control method comprising the step of transmitting the password decrypted in the step (S340) to the user, In the (S310) password encryption step, the password and the code value for encrypting the password are converted into hexadecimal numbers, respectively, to generate an encryption code by XOR, and in the (S340) password generation step, the encryption generated in the (S310) step Digital door lock control method characterized by generating a password by decrypting the code with XOR.