Automated assessment processor for physical security system
First Claim
1. A modular processor unit for intelligently enhancing a physical security system, said physical security system being of the type having a sensor and a central control station, and wherein a communications device transmits an alarm signal to the central control station in response to an output state of the sensor, said processor unit being connected intermediate the sensor and the communications device and comprising:
- receiving means for receiving a signal from said sensor, said signal being reflective of a monitored event;
analyzing means for analyzing over a period of time a plurality of preselected features of said signal received from said sensor;
classifying means for using said plurality of preselected features to evaluate a polynomial and using the evaluation thereof to classify said event reflected by said signal as an intrusion or a nuisance; and
,output state simulation means for simulating an element of said sensor from which said communications device expects to receive said sensor output state, said output simulation means being responsive to said classifying means for providing an output state in accordance with whether said event is classified by said classifying means as an intrusion or a nuisance.
1 Assignment
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Accused Products
Abstract
A modular processor unit, known as an ASP unit (50), is provided for intelligently enhancing a conventional physical security system (20) without significant reconfiguration. The unit (50) is installable between conventional sensors (30) and a conventional transponder (28), the transponder being in communication with a central control station (22) of the system. The ASP unit (50) analyzes, over a period of time, a plurality of preselected features of the signal received from said sensor and used the features to evaluate a polynomial and thereby classify an event as an intrusion or a nuisance. The ASP unit (50) further includes an output state simulation relay switch (72) responsive to the classification for simulating an element of the sensor (30) and for providing an output state to the transponder (28). In one embodiment, the ASP unit (50) is connected by an ASP communications network (52) to a retraining workstation (54). Upon installation of the ASP unit (50) or modification of sensors, the retraining workstation (54) can be used to download both sensor-related and classifier-related parameters to the ASP unit.
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Citations
22 Claims
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1. A modular processor unit for intelligently enhancing a physical security system, said physical security system being of the type having a sensor and a central control station, and wherein a communications device transmits an alarm signal to the central control station in response to an output state of the sensor, said processor unit being connected intermediate the sensor and the communications device and comprising:
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receiving means for receiving a signal from said sensor, said signal being reflective of a monitored event; analyzing means for analyzing over a period of time a plurality of preselected features of said signal received from said sensor; classifying means for using said plurality of preselected features to evaluate a polynomial and using the evaluation thereof to classify said event reflected by said signal as an intrusion or a nuisance; and
,output state simulation means for simulating an element of said sensor from which said communications device expects to receive said sensor output state, said output simulation means being responsive to said classifying means for providing an output state in accordance with whether said event is classified by said classifying means as an intrusion or a nuisance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 15, 16)
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10. A method of intelligently enhancing a physical security system, said physical security system being of the type having a sensor and a central control station, and wherein a communications device transmits an alarm signal to the central control station in response to an output state of the sensor, said method comprising:
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connecting a modular processor unit between the sensor and the communications device; receiving at the modular processor unit a signal from said sensor, said signal being reflective of a monitored event; analyzing, at said modular processor unit, and over a period of time, a plurality of preselected features of said signal received from said sensor; using said preselected plurality of features at said modular unit to evaluate a polynomial and using the evaluation thereof to classify said event reflected by said signal as an intrusion or a nuisance; and
,simulating an element of said sensor from which said communications device expects to receive said sensor output state, said simulation being responsive to said classification for providing an output state in accordance with whether said event is classified as an intrusion or a nuisance. - View Dependent Claims (11, 12, 13, 14, 17, 18)
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19. A modular processor unit for intelligently enhancing a physical security system, said physical security system being of the type having a plurality of sensors and a central control station, and wherein a communications device transmits an alarm signal to the central control station in response to an output state of the sensor, said processor unit being connected intermediate the plurality of sensor and the communications device and comprising:
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receiving means for receiving signals from said plurality of sensors, said signals being reflective of events monitored by said sensors; analyzing means for analyzing over a period of time a plurality of preselected features of each of said signals received from said sensors; classifying means for using said plurality of preselected features to evaluate a polynomial and using the evaluation thereof to classify said events reflected by said signals as an intrusion or a nuisance; and
,output state simulation means for simulating an element of each of said sensors from which said communications device expects to receive output affecting transmission of the alarm signal, said output simulation means being responsive to said classifying means for providing an output state in accordance with whether said events are classified by said classifying means as an intrusion or a nuisance. - View Dependent Claims (20)
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21. A modular processor unit in combination with a physical security system, the combination comprising:
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a sensor for monitoring a monitored event and producing a signal reflective of the monitored event; a central control station for receiving an alarm signal; a communications device for transmitting the alarm signal to the central control station; a modular processor unit connected to the sensor and to the communication device for using the signal produced by the sensor and for determining whether the monitored event is a nuisance or an intrusion, the modular processor unit comprising; receiving means for receiving the signal from said sensor; analyzing means for analyzing over a period of time a plurality of preselected features of said signal received from said sensor; classifying means for using said plurality of preselected features to evaluate a polynomial and using the evaluation thereof to classify said event reflected by said signal as an intrusion or a nuisance; and
,output state simulation means for simulating an element of said sensor from which said communications device expects to receive a sensor output state for generating the alarm signal, said output simulation means being responsive to said classifying means for providing an output state in accordance with whether said event is classified by said classifying means as an intrusion or a nuisance.
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22. A modular processor unit in combination with a physical security system, the combination comprising:
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a plurality of sensors for monitoring monitored events and producing sensor signals reflective of the monitored events; a central control station for receiving alarm signals; a plurality of communications devices for transmitting alarm signals to the central control station; a plurality of modular processor units, each modular processing unit being connected between at least one of the plurality of sensors and one of the communication devices, each modular processing unit using the signal produced by said at least one of the plurality of sensors in connection with a determination of whether an event monitored thereby is a nuisance or an intrusion, each the modular processor unit comprising; receiving means for receiving the sensor signal from said at least one of the plurality of sensors; analyzing means for analyzing over a period of time a plurality of preselected features of said signal received from said at least one of the plurality of sensors; classifying means for using said plurality of preselected features to evaluate a polynomial and using the evaluation thereof to classify said event reflected by said sensor signal as an intrusion or a nuisance; and
,output state simulation means for simulating an element of said at least one of the plurality of sensors from which said communications device expects to receive a sensor output state for generating the alarm signal, said output simulation means being responsive to said classifying means for providing an output state in accordance with whether said event is classified by said classifying means as an intrusion or a nuisance; a retraining station wherein the retraining station downloads classification-related parameters to the plurality of modular processing units on the communication network; and
,a communications network connecting the retraining station to the plurality of modular processing units whereby information is transmitted between the retraining station and the plurality of modular processing units.
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Specification