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System and method of anomaly detection

A security system and event technology, applied in the field of physical security systems, can solve problems such as card loss or theft

Inactive Publication Date: 2014-09-17
HONEYWELL INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although such systems work well, cards used in such systems can be lost or stolen

Method used

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  • System and method of anomaly detection

Examples

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Embodiment Construction

[0010] While embodiments may take many different forms, with the understanding that this disclosure should be considered as illustrative of its principles and the best mode for carrying out the same, the particulars of which are illustrated in the accompanying drawings and will be described in detail herein. Example. It is not intended to be limited to the specific embodiments described.

[0011] figure 1 is a block diagram of a security system shown generally in accordance with the illustrated embodiments. Included within the security system may be a plurality of sensors 12, 14 for detecting security threats within one or more protected areas 16 of the security system. In this regard, the protected area may be divided into a plurality of different security zones 38 with different security levels.

[0012] Under one illustrated embodiment, the sensor may include one or more limit switches mounted to an access (eg, door, window, etc.) that provides entry into or egress from ...

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Abstract

A method and apparatus wherein the method includes detecting a plurality of events within a security system, evaluating the events using one of a first expression defined by ˆ‘ r ˆˆ Q conf ( f ( r ) 1 - mr g ( r )), a second expression defined by ˆ« r ˆˆ R | f ( r ) - mr g ( r )| dr and a third expression defined by ˆ« r ˆˆ R conf ( f ( r ) - mr g ( r )) dr , where r is a size of a neighborhood around a data point, f (r) is a Local Correlation Integral (LOCI) of r, mrg(r) is a margin of r, R is a predetermined set of intervals of neighborhood sizes, Q is a predetermined discrete set of neighborhood sizes and conf(d) is a non-linear confidence function being 0 for near distance to the data point and quickly approaching 1 for larger distances, comparing a value of the evaluated expression with a threshold value and setting an alarm upon detecting that the value exceeds the threshold value.

Description

technical field [0001] The field of the invention relates to physical security systems, and more particularly to methods of detecting abnormal behavior by users of security systems. Background technique [0002] Security systems are generally known. Such systems typically include multiple sensors that detect security threats associated with the protected area. Security threats may include threats posed by intruders or by environmental threats such as fire, smoke, or natural gas. [0003] What may be included around the protected area are physical barriers (eg, walls, fences, etc.) that prevent intruders from entering the protected area. Multiple entrances (eg, doors, windows, etc.) may be provided around the perimeter of the protected area to allow entry into or egress from the protected area. [0004] Doors that allow access into protected areas may in turn be controlled by card readers and power locks that together restrict access through access to authorized persons. ...

Claims

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Application Information

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IPC IPC(8): G08B19/00
CPCG08B29/188G08B31/00G08B25/008
Inventor P.瓦查V.利巴尔V.古拉尔尼克
Owner HONEYWELL INT INC
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