SECURITY SYSTEM AND METHOD BY IRIS KEY SYSTEM FOR DOOR LOCK

• US 20090051489A1
• Filed: 10/17/2005
• Published: 02/26/2009
• Est. Priority Date: 10/18/2004
• Status: Abandoned Application

• Current Assignee: Rehoboth Tech Company Limited
• Original Assignee: Rehoboth Tech Company Limited
• Inventors: Kim, Shinho
• Application Number:
  US11/577,440
• Publication Number:
  US 20090051489A1
• Time in Patent Office: Days
• US Class Current: 340/5.820
• CPC Class Codes: G07C 2009/00761 with data transmission performed by connected means, e.g. mechanical contacts, plugs, connectors
• CPC Class Codes: G07C 9/00563 using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
• CPC Class Codes: G07C 9/26 using a biometric sensor integrated in the pass

Abstract

A security system and method using an iris key system for a door lock are disclosed, in which an inherent iris key code is stored in a static memory of an iris key unit, and an iris key code is copied and recorded into a temporary memory only when an iris verification result of an iris security drive unit corresponds to a verified user. In addition, when it is judged that an iris key code stored in a door opening and closing unit is matched with an iris key code of the temporary memory by a door controller of a door opening and closing unit, an operation of a door opening and closing unit is automatically allowed, so that it is possible to prevent a non-verified door opening and closing operation.

Claims

1. In a security system for a door opening and closing using an iris verification characteristic, an ills key system for a door security, comprising:

a portable iris key unit 200 which includes;

an iris key code static memory 230 formed of a connection plug detachable from a door opening and closing unit 100 and statically storing an his key code;

an ins key code temporary memory 210 for temporarily storing an his key code therein; and

an iris driving element 220 which is formed of a DSP processor, a camera and an iris security program and copies an iris key code of the iris key code static memory 230 only when the previously stored original iris code is matched with an iris code of the iris image inputted during a verification and stores into the iris key code temporary memory 210; and

a door opening and closing unit 100 which includes;

a door opening and closing element 130 formed of a connection socket detachable from the iris key unit 200 for thereby driving an opening and closing of the door;

an iris key code DB 120 for previously storing his key codes therein for a recognition of a corresponding iris key unit 200; and

a door controller 110 which receives an ins key code stored in the his key code temporary memory 210 of the inserted iris key unit 200 during an operation of the door opening and closing element 130, compares the received iris key code with the his key code previously stored in the iris key code DB 120 and permits an operation of the door opening and closing element 130 only when the compared iris key codes are matched with each other.

2. The system of claim 1, wherein said iris key unit 200 is detachable from a connection socket of the door opening and closing unit 100 through a connection plug.

3. The system of claim 1, wherein the connection plug of the iris key unit 200 and the connection socket of the door opening and closing unit 100 are formed of a transmitter and a receiver, respectively, and are connected based on a wireless communication method.

4. The system of claim 1, wherein said iris key code DB 120 of the door opening and closing apparatus 100 is formed of a database which stores a plurality of iris key codes corresponding to each iris key unit 200.

5. The system of claim 1, wherein said iris security driving element 220 includes:

an iris code memory device 224 for storing an original iris code;

a program memory device 223 having an iris security code which judges whether an iris code generated by capturing an iris image using an iris photographing camera 222 during a verification is matched with the original iris code or not, copies an iris key code of the iris key code static memory 230 based on the matching state and determines whether the copied iris key code is stored into the iris key code temporary memory 210 or not;

a DSP processor 221 which executes and controls the iris security program of the program memory device;

a temporary memory (RAM) 225 which is used by the DSP processor;

an iris image photographing camera 222 which transmits an iris image to the DSP processor;

an operation state display LED 226 which displays an operation state of the iris key unit 200 based on an iris verification state;

a secondary battery 228 which is chargeable and supplies an electric power to the elements of the iris key unit 200 including the DSP processor 221; and

a locking switch 227 which applies an electric power from the battery 228 to the iris security driving element 220 and selectively locks or unlocks the iris security apparatus 220.

6. In a security method of a door using an iris key, an iris key security method, comprising:

a step (1) in which an iris key unit 200 previously stores an original ills code, generates a reference iris code based on an iris image and compares the generated reference iris code with the stored original iris code;

a step (2) in which the iris key code statically stored in the iris key code static memory 230 into the iris key code temporary memory 210 only when a result of the verification corresponds to a verified user;

a step (3) in which a connection plug of the ills key unit 200 is inserted into a connection socket of the door opening and closing unit 100;

a step (4) in which an iris key code stored in the iris key code temporary memory 210 of the iris key unit 200 is compared with an iris key code previously stored in the iris key code DB 120 of the door opening and closing unit 100 so as to judge whether the iris key unit 200 inserted into the connection socket of the door opening and closing unit 100 is a verified key; and

a fifth step (5) in which an operation of the door opening and closing element 130 is permitted only when the iris key codes are matched with each other in the fourth step.