Intrusion detection with motion sensing
First Claim
1. An intrusion detection system comprising:
- at least two detectors, wherein each detector is configured to produce a detection output;
processors;
a memory storing instructions that, when executed by at least one processor among the processors, cause the intrusion detection system to perform operations comprising, at least;
producing metadata including information relating to adverse conditions that reduce detection performance of one or more of the at least two detectors; and
generating a combined alarm signal, wherein the combined alarm signal is a function of a plurality of detection outputs from the at least two detectors and the metadata.
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Accused Products
Abstract
An intrusion detection system comprises at least two detectors. Each detector is configured to produce a detection output. At least one information module is configured to produce metadata that relates to the performance of one or more of the at least two detectors. An analysis module is configured to produce a combined alarm signal. The combined alarm signal is a function of the plurality of detection outputs from the at least two detectors and the metadata. The metadata may include information relating to adverse conditions that reduce detection performance of one or more of the detectors. The at least two detectors preferably include at least one video motion detector and a passive infrared detector.
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Citations
25 Claims
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1. An intrusion detection system comprising:
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at least two detectors, wherein each detector is configured to produce a detection output; processors; a memory storing instructions that, when executed by at least one processor among the processors, cause the intrusion detection system to perform operations comprising, at least; producing metadata including information relating to adverse conditions that reduce detection performance of one or more of the at least two detectors; and generating a combined alarm signal, wherein the combined alarm signal is a function of a plurality of detection outputs from the at least two detectors and the metadata. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An intrusion detection system including:
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at least two detectors wherein each detector is configured to produce detection outputs, one detector is a passive infra-red (PIR) detector, wherein the PIR detector includes at least two PIR sensors; wherein the system is configured such that; in non-adverse conditions each of the at least two PIR sensors must detect a target in order for the PIR detector to output a PIR alarm signal; and in adverse conditions that affect PIR detection performance, the PIR alarm signal is output, if any one of the at least two PIR sensors detects the target. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25)
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19. An intrusion detection system, the system including at least one video motion detector (VMD) and at least one passive infrared (PIR) detector, each detector being configured to output a detection output to an analyzer when the respective detector detects an intrusion event;
- wherein
the at least one PIR detector is used to determine a parameter of an intruding target; and the at least one VMD independently determines a parameter of at least one target in a field of view of the VMD; wherein if the parameter determined by the at least one PIR detector substantially matches the parameter of the at least one target independently determined by the VMD, then the analyzer is configured to send a control signal to the VMD and/or PIR detector such that the VMD and/or PIR detector sensitivity is increased when the control signal from the analyzer is received.
- wherein
Specification