Device, system and method for monitoring a predetermined space
First Claim
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1. A method for monitoring a predetermined space, comprising:
- a) using at least one first volumetric sensor for detecting whether there has been a movement in an authorized zone of said space and outputting a first movement signal when there has been a movement in the authorized zone;
b) using at least one second volumetric sensor for detecting whether there has been a movement in an unauthorized zone of said space and outputting a second movement signal when there has been a movement in the unauthorized zone;
c) determining whether the first movement signal or the second movement signal has been output;
d1) instructing a status variable to adopt a first value if either the first movement signal or the second movement signal has been output, indicative of a presence of at least one person in said space, and to adopt a second value if neither of the first movement signal or the second movement signal has been output, indicative of an absence of persons in said space;
d2) if said status variable has the first value, activating a countdown;
d3) detecting a further movement in either of the authorized zone or the unauthorized zone;
e) if said status variable has said second value and said further movement was detected in said unauthorized zone, making an alarm indication;
f) if said status variable has said second value and said further movement was detected in the authorized zone, setting the status variable to the first value and activating the countdown;
g) if said status variable has said first value and the further movement was detected either in the authorized zone or in the unauthorized zone, resetting and reactivating the countdown;
h) if the countdown has finished without detection of the further movement in either the authorized zone or the unauthorized zone, setting the status variable to the second value.
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Abstract
A method for monitoring a predetermined space, comprising the following steps:
a) preparing at least one first volumetric sensor for detecting a first movement signal representative of movement in an authorized zone of said space;
b) preparing at least one second volumetric sensor for detecting a second movement signal representative of movement in an unauthorized zone of said space;
c) processing said first signal and second signal for identifying a movement in said space.
9 Citations
12 Claims
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1. A method for monitoring a predetermined space, comprising:
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a) using at least one first volumetric sensor for detecting whether there has been a movement in an authorized zone of said space and outputting a first movement signal when there has been a movement in the authorized zone; b) using at least one second volumetric sensor for detecting whether there has been a movement in an unauthorized zone of said space and outputting a second movement signal when there has been a movement in the unauthorized zone; c) determining whether the first movement signal or the second movement signal has been output; d1) instructing a status variable to adopt a first value if either the first movement signal or the second movement signal has been output, indicative of a presence of at least one person in said space, and to adopt a second value if neither of the first movement signal or the second movement signal has been output, indicative of an absence of persons in said space; d2) if said status variable has the first value, activating a countdown; d3) detecting a further movement in either of the authorized zone or the unauthorized zone; e) if said status variable has said second value and said further movement was detected in said unauthorized zone, making an alarm indication; f) if said status variable has said second value and said further movement was detected in the authorized zone, setting the status variable to the first value and activating the countdown; g) if said status variable has said first value and the further movement was detected either in the authorized zone or in the unauthorized zone, resetting and reactivating the countdown; h) if the countdown has finished without detection of the further movement in either the authorized zone or the unauthorized zone, setting the status variable to the second value. - View Dependent Claims (2, 3, 4, 5, 6, 11, 12)
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7. A device for monitoring a predetermined space, comprising:
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at least one first volumetric sensor detecting whether there has been a movement in an authorized zone of said space and outputting a first movement signal when there has been a movement in the authorized zone; at least one second volumetric sensor detecting whether there has been a movement in an unauthorized zone of said space and outputting a second movement signal when there has been a movement in the unauthorized zone; a processor programmed to; determine whether the first movement signal or the second movement signal has been output; instruct a status variable to adopt a first value if either the first movement signal or the second movement signal has been output, indicative of a presence of at least one person in said space, and to adopt a second value if neither of the first movement signal or the second movement signal has been output, indicative of an absence of persons in said space; if the status variable has the first value, activate a countdown; detect a further movement in either of the authorized zone or the unauthorized zone; if said status variable has said second value and said further movement was detected in said unauthorized zone, make an alarm indication; if said status variable has said second value and said further movement was detected in the authorized zone, set the status variable to the first value and activate the countdown; if said status variable has said first value and the further movement was detected either in the authorized zone or in the unauthorized zone, reset and reactivate the countdown; if the countdown has finished without detection of the further movement in either the authorized zone or the unauthorized zone, set the status variable to the second value. - View Dependent Claims (8, 9, 10)
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Specification