Nuisance Alarm Filter
First Claim
Patent Images
1. An alarm filter for filtering out nuisance alarms in a security system including a plurality of sensors to monitor an environment and detect alarm events, the alarm filter comprising:
- sensor inputs for receiving sensor signals from the plurality of sensors;
means for selectively modifying the sensor signals to produce verified sensor signals; and
sensor outputs for communicating the verified sensor signals to an alarm panel.
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Abstract
An alarm filter (22) for use in a security system (14) to reduce the occurrence of nuisance alarms receives sensor signals (S1-Sn, Sv) from a plurality of sensors (18, 20) included in the security system (14). The alarm filter (22) produces an opinion output as a function of the sensor signals and selectively modifies the sensor signals as a function of the opinion output to produce verified sensor signals (S1′-Sn′).
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Citations
20 Claims
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1. An alarm filter for filtering out nuisance alarms in a security system including a plurality of sensors to monitor an environment and detect alarm events, the alarm filter comprising:
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sensor inputs for receiving sensor signals from the plurality of sensors; means for selectively modifying the sensor signals to produce verified sensor signals; and sensor outputs for communicating the verified sensor signals to an alarm panel. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An alarm system for monitoring an environment to detect alarm events and communicate alarms based on the alarm events to a remote monitoring center, the alarm system comprising:
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a plurality of sensors for monitoring conditions associated with the environment and producing sensor signals in response to alarm events; a verification sensor for monitoring conditions associated with the environment and producing verification sensor signals representative of the conditions; and an alarm filter in communication with the plurality of sensors to produce an opinion output as a function of the sensor signals and the verification sensor signals. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method for reducing the occurrence of nuisance alarms generated by an alarm system including a plurality of sensors for monitoring conditions associated with an environment, the method comprising:
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receiving sensor signals from the plurality of sensors representing conditions associated with the environment; processing the sensor signals to produce an opinion output as a function of the sensor signals, wherein the opinion output represents a relative indication about a truth of an alarm event; and selectively modifying the sensor signals as a function of the opinion output to produce verified sensor signals. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification