Method for controlling access in a system compressing a portable device associated with a user and an access control device
First Claim
1. A method for controlling access in a system comprising a portable device associated with a user and an access control device, the access control device having a locked and an unlocked state, wherein the portable device and the access control device are configured to wirelessly communicate with each other, the method comprising:
- pairing the portable device and the access control device,upon the portable device detecting proximity to the access control device, determining at the portable device a signal strength over time of a signal received from the access control device,comparing the determined signal strength over time with a previously determined reference signal strength profile, andupon the determined signal strength over time being considered congruent with the reference signal strength profile, controlling the access control device;
upon the access control device changing state from the locked state to the unlocked state, recording or updating at the portable device at least a portion of the determined signal strength over time as a reference signal strength profile.
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Accused Products
Abstract
A method for controlling access in a system comprising a portable device associated with a user and an access control device, includes the portable device and the access control device being configured to wirelessly communicate with each other, the method comprising: pairing the portable device and the access control device, upon the portable device detecting proximity to the access control device, determining at the portable device a signal strength over time of a signal received from the access control device, comparing the determined signal strength over time with a previously determined reference signal strength profile, and upon the determined signal strength over time being considered congruent with the reference signal strength profile, controlling the access control device.
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Citations
14 Claims
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1. A method for controlling access in a system comprising a portable device associated with a user and an access control device, the access control device having a locked and an unlocked state, wherein the portable device and the access control device are configured to wirelessly communicate with each other, the method comprising:
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pairing the portable device and the access control device, upon the portable device detecting proximity to the access control device, determining at the portable device a signal strength over time of a signal received from the access control device, comparing the determined signal strength over time with a previously determined reference signal strength profile, and upon the determined signal strength over time being considered congruent with the reference signal strength profile, controlling the access control device; upon the access control device changing state from the locked state to the unlocked state, recording or updating at the portable device at least a portion of the determined signal strength over time as a reference signal strength profile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification