control is simply a means of managing the access of people and
vehicles, and where appropriate, to buildings, car parks, vulnerable
or sensitive areas and electronic equipment.
Access control systems are essential for high security, safety
or other restricted areas. They allow doors to remain permanently
locked without the need to supply a large number of keys or
to restrict the movement of approved personnel. Controlled entry
to buildings, blocks of flats and single domestic residences
can provide a real sense of security and peace of mind.
A good access control system should provide a balance between
security needs, and freedom of movement for authorised personnel,
enhancing rather than hindering the organisation employing it.
With over 30 years experience in the field, DDD can design a
made to measure system that suits your needs to perfection.
used for access control is available in many types: digital
code keypad systems, card swipe systems, proximity systems using
tokens or cards, biometric systems using hand geometry or fingerprint
identification, stand-alone or computer linked. Audio and video
door porter systems are also available with remote controlled
door operation. The simplest form of control is a stand-alone
access system using a keyboard or card reader mounted
the door that is being
allows an authorised person to enter a pre-determined
code or insert a coded card, which will be accepted by
unit, and will then allow access. More sophisticated systems
using microprocessor controls allow areas
to be zoned with separate access codes allocated
to each zone, restricting grades of personnel to
different access levels. Using extensions, systems
can also be used to record events and identify personnel
and times. DDD offer a
range of equipment with design and installation
expertise to cover all requirements. The digital
systems in particular, incorporate the latest
technology at very competitive prices.