Method, device, computer program and computer program product for determining whether a portable key device is located in an active area in relation to a barrier
AssigneeAssa Abloy AB
InventorsTomas Jonsson, Hakan Olsson
Life of this patent
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Abstract
It is presented a method for determining whether a portable key device is located in an active area in relation to a barrier. The method is performed in an access control device and comprises the steps of: detecting an angle of arrival of a wireless signal from the portable key device using a pair of antennas provided such that a line between the pair of antennas crosses the barrier; and determining whether the portable key device is located within the active area based on the angle of arrival.
Claims13
A method for determining whether a portable key device is located in an active area in relation to a barrier, the method being performed in an access control device and comprising the steps of:
- detecting an angle of arrival of a wireless signal from the portable key device using two and only two antennas provided such that a straight line between the two and only two antennas crosses the barrier;
- determining whether the portable key device is located within the active area based on the angle of arrival, wherein the active area is defined to be outside of the barrier;
- and
- triggering access control when the portable key device is determined to be located in the active area.
An access control device arranged to determine whether a portable key device is located in an active area in relation to a barrier, the access control device comprising:
- a processor;
- and
- a memory storing instructions that, when executed by the processor, causes the access control device to:
- detect an angle of arrival of a wireless signal from the portable key device using two and only two antennas provided such that a straight line between the two and only two antennas crosses the barrier;
- determine whether the portable key device is located within the active area based on the angle of arrival, wherein the active area is defined to be outside of the barrier;
- and
- trigger access control when the portable key device is determined to be located in the active area.
A computer program stored in a non-transitory medium for determining whether a portable key device is located in an active area in relation to a barrier, the computer program comprising computer program code which, when run on an access control device, causes the access control device to:
- detect an angle of arrival of a wireless signal from the portable key device using two and only two antennas provided such that a straight line between the two and only two antennas crosses the barrier;
- determine whether the portable key device is located within the active area based on the angle of arrival, wherein the active area is defined to be outside of the barrier;
- and
- trigger access control when the portable key device is determined to be located in the active area.
Dependencies are inferred from the claim text.