Abstract:
An access control system is for at least first and second doors each having a lock adjustable between locked and unlocked states. A key has a code including first and second segments. A first controller coupled with the first door lock has a stored value and is configured to receive the key code and to compare at least the code first segment with the stored value, and unlocks the first lock when the code first segment corresponds with the stored value. A second controller coupled with the second door lock has a stored value and is configured to receive the key code and to compare at least the second code segment with the second stored value, and unlocks the second lock when either the code second segment corresponds with the second stored value or both code segments correspond with separate portions of the second value.
Abstract:
A method of collecting data in a lock system. The method includes providing each user with a credential that contains user information, presenting the credential at an off-line access point, and reading the user information from the credential. The method also includes analyzing the user information at the first off-line access point to determine if access to the first off-line access point should be allowed, sending event data from the off-line access point to the credential, and selectively overwriting existing event data and storing the sent event data on the credential. The invention further includes presenting the credential at an on-line access point and reading the user data and reading the event data.
Abstract:
An access control system is for at least first and second doors each having a lock adjustable between locked and unlocked states. A key has a code including first and second segments. A first controller coupled with the first door lock has a stored value and is configured to receive the key code and to compare at least the code first segment with the stored value, and unlocks the first lock when the code first segment corresponds with the stored value. A second controller coupled with the second door lock has a stored value and is configured to receive the key code and to compare at least the second code segment with the second stored value, and unlocks the second lock when either the code second segment corresponds with the second stored value or both code segments correspond with separate portions of the second value.