Access
control can be defined as a security method that is used to control access to
buildings and information. There are mainly
2 types of access control:
·
Physical
·
Logical
Physical
security
Physical
security is a term used when describing security measures to deny unauthorized
access to facilities, equipment and resources, and to protect personnel and
property from harm or damage. Physical security involves the use of multiple
layers of independent systems which include video surveillance, mechanical and
electronic access protocols and other techniques.
Electronic
access control
Electronic
access control allows restrictions to be placed on any control point,
prohibiting or allowing selected users access during various hours. Such
systems can drive an unlimited number of entrances including doors, turnstiles
and barriers. For each entrance one can choose to control one or both
directions. Entrance is granted only on specific days, within defined time
zones and only for selected groups.
When
entry is granted, the door is unlocked for a set time and the transaction is
recorded. When access is denied, the access attempt is recorded and the door stays
locked. The system will raise an alarm if the door is opened by force or it is
held open for too long after being unlocked.
How
it works
When
a credential is given to a reader, the reader relays the information to a
control panel. When the credential
matches the access list, the control panel initiates a relay that then unlocks
the door. Usually the reader offers feedback, such as red LED flash for access
denied or green LED flash for access accepted.
Methods
of authentication
·
Magnetic swipe card
readers where access is permitted by swiping a card with a unique serial number
assigned to the person
·
Proximity card readers
where access is permitted by waiving a card or fob with a unique serial number
assigned to the person
·
Biometric readers
identifies a person’s unique and distinct features to gain access, and can take
many forms including fingerprint, iris and face recognition
Computime,
a UK based specialist in physical
access control solutions, offers an advanced RealAccess, which is
flexible and configurable to suit your own environment. RealAccess software is
available as an independent, stand alone module or integrated with RealTime
time and attendance to give you a complete workforce management solution.
Apart from the refined software
developed in-house in their Leeds facility, Computime offers superior service
support, a feature that businesses appreciate due to the nature of attendance tracking.
