SECURITY ACCESS CONTROL SYSTEM AND METHOD FOR MAKING SAME

• US 20090051528A1
• Filed: 08/22/2007
• Published: 02/26/2009
• Est. Priority Date: 08/22/2007
• Status: Active Grant

• Current Assignee: UTC Fire & Security Americas Corporation, Inc. (Carrier Global Corporation)
• Original Assignee: General Electric Company
• Inventors: Graichen, Catherine Mary
• Granted Patent: US 8,269,602 B2
• Time in Patent Office: Days
• US Class Current: 340/547
• CPC Class Codes: G07C 9/00571 operated by interacting with a central unit
• CPC Class Codes: G07C 9/00904 for hotels, motels, office buildings or the like
• CPC Class Codes: G07C 9/27 with central registration
• CPC Class Codes: G07C 9/38 with central registration
• CPC Class Codes: G08B 13/08 by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind

Abstract

A security system to identify a true door forced open alarm is provided. The security system includes an electronic entry means configured to allow access through a door. The security system also includes a request to exit device configured to indicate a request to exit the door. The security system also includes a logic unit configured to control access through the door and determine whether an open state of the door is allowed.

Claims

1. A security system to identify a true door forced open alarm, comprising:

an electronic entry means configured to allow access through a door;

a request to exit device configured to indicate a request to exit the door;

a sensor device configured to detect an open door; and

a logic unit configured to control access through the door and determine whether an open state of the door is allowed.

2. The system of claim 1, where the request to exit device comprises a motion detector.

3. The system of claim 1, wherein the sensor comprises a magnetic sensor.

4. The system of claim 1, further comprising a timer configured to detect a period of time between opening of the door and closing of the door.

5. The system of claim 1, wherein the electronic entry means comprises a keypad entry.

6. The system of claim 1, wherein the electronic entry means comprises a card reader.

7. The system of claim 1, wherein the electronic entry means comprises a biometric reader.

8. The system of claim 7, wherein the biometric reader comprises at least one of a fingerprint reader, an iris scan reader, or a facial feature matching reader.

9. The system of claim 1, further comprising a centralized monitoring station configured to allow remote monitoring of the door.

10. The system of claim 1, wherein the logic unit is configured to classify the access into a type of alarm.

11. The system of claim 10, wherein the type of alarm comprises at least one of a forced door alarm, a rapid exit alarm, a slow exit alarm, a loose door alarm, an attended loose door alarm or an unattended loose door alarm.

12. The system of claim 10, wherein the logic unit is configured to classify the type of alarm based upon a plurality of signals received from the electronic entry means, the sensor device, the request to exit device and an external motion detector.

13. A method for making a security system, comprising:

providing a sensor for sensing separation of a door from a frame indicating if the door is open;

providing a request for exit device to permit access through the door;

providing a timer for monitoring a time period between the separation of the door and closing of the door; and

providing a logic unit in communication with the timer for determining if the time period is less than a threshold time limit and for classifying the access into a type of alarm.

14. The method of claim 13, wherein the providing a logic unit comprises providing a microcontroller.

15. The method of claim 13, wherein the providing a sensor comprises installing the sensor on at least one of the door or a frame.

16. The method of claim 13, wherein the providing a sensor comprises installing the sensor on a door latch.

17. The method of claim 13, wherein the type of alarm comprises at least one of a forced door alarm, a rapid exit alarm, a slow exit alarm, a loose door alarm, an attended loose door alarm or an unattended loose door alarm.

18. The method of claim 13, wherein the request for exit device comprises a motion detector.

19. The method of claim 13, comprising providing an external motion detector installed external to the door.