System and Method for Restricting Access through a Mantrap Portal
First Claim
1. A method of controlling access to a secured area using a mantrap, the mantrap having a landside door and an airside door, the method comprising:
- monitoring a primary zone, the primary zone comprising a region within the mantrap having an area less than the area of the mantrap, to determine the presence of one person in the primary zone;
monitoring a secondary zone, the secondary zone being an area comprising a region of the mantrap not including the primary zone, to determine the absence of any persons in the secondary zone; and
controlling access through the landside door and the airside door in response to the steps of monitoring the primary zone and monitoring the secondary zone.
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Accused Products
Abstract
A method and system provides increased levels of security for a mantrap portal by continuously monitoring two zones of the mantrap; a primary zone and a secondary zone. A primary sensor determines that exactly one or zero people are present in the primary zone when requesting access into a secured area. A secondary sensor determines that exactly zero people are present in the secondary zone when access to the secured area is granted. The primary and secondary sensors in combination can detect piggyback events and tailgating events before granting access to a secured area. Further, the primary and secondary sensors in combination can detect the presence of unauthorized persons in a mantrap prior to granting access to the mantrap for exit from a secured area.
104 Citations
17 Claims
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1. A method of controlling access to a secured area using a mantrap, the mantrap having a landside door and an airside door, the method comprising:
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monitoring a primary zone, the primary zone comprising a region within the mantrap having an area less than the area of the mantrap, to determine the presence of one person in the primary zone;
monitoring a secondary zone, the secondary zone being an area comprising a region of the mantrap not including the primary zone, to determine the absence of any persons in the secondary zone; and
controlling access through the landside door and the airside door in response to the steps of monitoring the primary zone and monitoring the secondary zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for controlling access to a secured area using a mantrap, the system comprising:
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a mantrap having a lockable landside door and a lockable airside door;
a primary sensor to detect the presence of a person in a primary zone within the mantrap, the primary zone comprising a region within the mantrap having an area less than the area of the mantrap;
a secondary sensor to detect the absence of any persons within a secondary zone within the mantrap, the secondary zone comprising a region within the mantrap not including the primary zone;
a controller coupled to the primary sensor and the secondary sensor, the controller actuating the lockable landside door and the lockable airside door in response to the output of the primary sensor and the secondary sensor. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method for detecting objects in a mantrap, the method comprising:
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acquiring a stereo image of a region of the mantrap, the stereo image comprising a plurality of two-dimensional images of the region;
computing a set of 3D features from the stereo image;
determining the absence of any person in the region using the set of 3D features;
comparing one of the plurality of two dimensional images of the region to a baseline image; and
detecting an object in the mantrap from the step of comparing. - View Dependent Claims (16, 17)
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Specification