System and method for monitoring a site using time gap analysis
First Claim
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1. A method for monitoring a site, comprising the steps of:
- calculating a learned threshold time based on a statistical analysis of lengths of time between sensor firings of one or more sensors;
detecting a first sensor firing from the one or more sensors;
measuring the length of time that has elapsed since the first sensor firing;
comparing the length of time that has elapsed since the first sensor firing with the learned threshold time; and
generating an alarm condition when the length of time that has elapsed since the first sensor firing exceeds the learned threshold time and no second sensor firing has been detected since the first sensor firing.
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Abstract
A method for monitoring a site includes calculating a learned threshold time based on a statistical analysis of lengths of time between sensor firings of one or more sensors. A first sensor firing is detected from the one or more sensors. The length of time that has elapsed since the first sensor firing is measured. The length of time that has elapsed since the first sensor firing is compared with the learned threshold time. An alarm condition is generated when the length of time that has elapsed since the first sensor firing exceeds the learned threshold time and no second sensor firing has been detected since the first sensor firing.
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Citations
40 Claims
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1. A method for monitoring a site, comprising the steps of:
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calculating a learned threshold time based on a statistical analysis of lengths of time between sensor firings of one or more sensors;
detecting a first sensor firing from the one or more sensors;
measuring the length of time that has elapsed since the first sensor firing;
comparing the length of time that has elapsed since the first sensor firing with the learned threshold time; and
generating an alarm condition when the length of time that has elapsed since the first sensor firing exceeds the learned threshold time and no second sensor firing has been detected since the first sensor firing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for monitoring a site, comprising:
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one or more sensors installed within the monitored site for sensing activity and firing when activity is sensed; and
a data processing unit for;
calculating a learned threshold time based on a statistical analysis of lengths of time between sensor-firings of one or more sensors;
detecting a first sensor firing from the one or more sensors;
measuring the length of time that has elapsed since the first sensor firing;
comparing the length of time that has elapsed since the first sensor firing with the learned threshold time; and
generating an alarm condition when the length of time that has elapsed since the first sensor firing exceeds the learned threshold time and no second sensor firing has been detected since the first sensor firing. - View Dependent Claims (15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27)
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19. The system of clain 14, wherein one or more caregivers is alerted of the alarm condition when an alarm condition has been generated.
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28. A computer system comprising:
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a processor; and
a program storage device readable by the computer system, embodying a program of instructions executable by the processor to perform method steps for monitoring a site, the method comprising;
calculating a learned threshold time based on a statistical analysis of lengths of time between sensor firings of one or more sensors;
detecting a first sensor firing from the one or more sensors;
measuring the length of time that has elapsed since the first sensor firing;
comparing the length of time that has elapsed since the first sensor firing with the learned threshold time; and
generating an alarm condition when the length of time that has elapsed since the first sensor firing exceeds the learned threshold time and no second sensor firing has been detected since the first sensor firing. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification