Access control system and method using radio-frequency identification and imaging
First Claim
Patent Images
1. An access gate comprising:
- a base;
a first wall and a second wall attached to the base, each wall having an inside surface, an outside surface, a height, an entrance side and an exit side;
a gate space defined by the inside surface of the first wall and the second wall and the base;
an entrance side sensor mounted at the entrance side of the first wall and the second wall for sensing entrance of a user into the gate space;
a middle sensor mounted on an inside surface of at least one of the first wall and the second wall for sensing a user centered within the gate space;
at least one access bar mounted to the exit side of the first wall and the second wall, the at least one access bar being moveable between an open position, allowing exit from the gate space, to a closed position in which exit from the gate space is denied;
a UHF radio frequency identification reader having at least two antennas within the gate space, for reading UHF RFID enabled tags within the gate space and determining that a UHF RFID enabled tag is in within the gate space by comparing signal strengths from the at least two antennas;
a motion video camera for capturing moving images of the gate space; and
a computer coupled to the UHF radio frequency identification reader, the motion video camera, the entrance side sensor, the middle sensor and the at least one access bar;
such that when a user enters the gate space and is sensed by the entrance side sensor the motion video camera captures moving images of the user until the middle sensor senses the user centered in the gate space, the computer derives biometrics from the captured moving image, the UHF radio frequency identification reader reads an identification from a UHF RFID enabled tag within the gate space carried by the user, and the computer permits the access bar to be movable to the open position at least if the identification is valid for access.
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Abstract
The invention provides an access control system and method for ski areas or similar facilities which uses a combination of RFID enabled tags and video-image derived biometric information to control access through an access gate.
29 Citations
43 Claims
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1. An access gate comprising:
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a base; a first wall and a second wall attached to the base, each wall having an inside surface, an outside surface, a height, an entrance side and an exit side; a gate space defined by the inside surface of the first wall and the second wall and the base; an entrance side sensor mounted at the entrance side of the first wall and the second wall for sensing entrance of a user into the gate space; a middle sensor mounted on an inside surface of at least one of the first wall and the second wall for sensing a user centered within the gate space; at least one access bar mounted to the exit side of the first wall and the second wall, the at least one access bar being moveable between an open position, allowing exit from the gate space, to a closed position in which exit from the gate space is denied; a UHF radio frequency identification reader having at least two antennas within the gate space, for reading UHF RFID enabled tags within the gate space and determining that a UHF RFID enabled tag is in within the gate space by comparing signal strengths from the at least two antennas; a motion video camera for capturing moving images of the gate space; and a computer coupled to the UHF radio frequency identification reader, the motion video camera, the entrance side sensor, the middle sensor and the at least one access bar; such that when a user enters the gate space and is sensed by the entrance side sensor the motion video camera captures moving images of the user until the middle sensor senses the user centered in the gate space, the computer derives biometrics from the captured moving image, the UHF radio frequency identification reader reads an identification from a UHF RFID enabled tag within the gate space carried by the user, and the computer permits the access bar to be movable to the open position at least if the identification is valid for access. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An access gate comprising:
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a first wall and a second wall each attached to a U-shaped tube, each wall having an inside surface, an outside surface, an entrance side and an exit side; a gate space defined by the inside surface of the first wall and the second wall; an entrance side sensor mounted at the entrance side of the first wall and the second wall for sensing entrance of a user into the gate space; a middle sensor mounted on an inside surface of at least one of the first wall and the second wall for sensing a user centered within the gate space; at least one access bar mounted to the exit side of the first wall and the second wall, the at least one access bar being moveable between an open position, allowing exit from the gate space, to a closed position in which exit from the gate space is denied; a UHF radio frequency identification reader having at least two antennas within the gate space, for reading UHF RFID enabled tags within the gate space and determining that a UHF RFID enabled tag is in within the gate space by comparing signal strengths from the at least two antennas; a motion video camera for capturing moving images of the gate space; and a computer coupled to the UHF radio frequency identification reader, the motion video camera, the entrance side sensor, the middle sensor and the at least one access bar; such that when a user enters the gate space and is sensed by the entrance side sensor the motion video camera captures moving images of the user until the middle sensor senses the user centered in the gate space, the computer derives biometrics from the captured moving image, the UHF radio frequency identification reader reads an identification from a UHF RFID enabled tag within the gate space carried by the user, and the computer permits the access bar to be movable to the open position at least if the identification is valid for access. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of controlling access to an area using an access gate enclosing a gate space, the access gate having an entrance side sensor mounted at the entrance side of the gate space, a middle sensor mounted at a location for sensing a user centered within the gate space, at least one access door movable from a closed position to an open position, a UHF radio frequency identification reader for reading UHF RFID enabled tags, a motion video camera for capturing moving images of the gate space, and a computer coupled to the access door, the entrance side sensor, the middle sensor, the UHF radio frequency identification reader and the motion video camera, the method comprising:
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a) when the entrance side sensor senses the presence of a user entering the gate space, the motion video camera beginning to capture a moving image of the user entering the gate space; b) when the middle sensor senses the presence of the user centered within the gate space, the motion video camera stopping capturing the moving image and the UHF radio frequency identification reader reading an identification from a UHF RFID enabled tag in the gate space; c) the computer comparing the identification from the RFID enabled tag to a first database; d) if the identification from the RFID enabled tag matches identification data present in the first database, the computer determining from data in the first database that the RFID enabled tag is valid for access, then; i) if the RFID enabled tag is valid for access, the computer deriving a plurality of biometrics of the user from the moving image captured by the motion video camera by; altering the moving image into a moving outline or silhouette image of the user within the gate space; deriving information about a skeleton of the user by differentiating a plurality of joints within the user'"'"'s body from the moving outline or silhouette image; and extracting a plurality of biometrics from the information about the user'"'"'s skeleton derived from the moving outline or silhouette image; ii) the computer determining if biometrics is present in a second database associated with the RFID enabled tag; iii) if there is no biometrics present in the second database, indicating that the RFID enabled tag has not previously entered an access gate, then; A) the computer storing the biometrics derived in step (ii) in the second database, associated with the identification of the UHF RFID enabled tag; B) the computer allowing the user to exit through the access gate by allowing the at least one access door to move to the open position; iv) if biometrics are present in the second database associated with the RFID enabled tag, indicating that the RFID enabled tag has previously entered an access gate, then; A) the computer comparing the biometrics derived in step (ii) to biometrics stored in the second database; B) if the comparison of step (iv)(A) indicates that the biometrics derived in step (ii) match the biometrics stored in the second database, the computer allowing the user to exit through the access gate by allowing the at least one access door to move to the open position. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification