| 摘要 |
<p>The present invention relates to a digital door lock including a rotation authentication unit capable of preventing a password from being exposed through a fingerprint trace by rotating a rotation number part when the password is authenticated to open a door as numbers of the rotating number part is formed as a rotatable structure in a touch type password input device of the digital door lock, and of improving reliability for a user because it is difficult to recognize the password when the other person maliciously takes a picture, and an access authentication method thereof. To achieve the same, the digital door lock (100) according to the present invention includes: a capacitance sensor (130) to recognize a body contact signal of a user; a central processing unit (140) to output a determination and control signal according to a sensing result of the capacitance sensor (130); a writing unit (160) which receives a signal from the central processing unit (140) to light a number; a rotation number pad (150) rotated according to the control signal from the central processing unit (140) to display the number; a position sensor (170) to sense a current position of the rotated number of the rotation number pad(150); and a lockset driver (180) to close or open a door according to the control signal from the central processing unit (140).</p> |
