Security with access control
Allowed where, when — or not
Access control applies to all categories of security systems. It can be monitored, authorised or restricted by human guards, electronic barriers and surveillance equipment rigged to entry points.
Access control relies on ID authentication. There are three methods:
1. something known – PIN, password
2. something owned – key fob, swipe card
3. something biological – fingerprint, retina, iris, face, hand
Henry Gates Security designs systems tailored to the situation, environment and needs of clients.
For years, permitted entry was enabled through a system of keys, keypad codes or passwords or magnetic swipe cards. Nowadays, biometric profiles — retina recognition, fingerprint match, facial scanning — are used. They’re prevalent in highly sensitive security zones: airports, pharmaceutical laboratories, space communications research & development zones.
Denied entry triggers an alarm and a manpower response.
Since the Dunblane tragedy decades ago, educational institutions have reassessed their security, requiring authorised access for teachers, staff and temporary visitors. They use less sophisticated access control measures, but these are still very effective.
As technology and encryption advance, so our options that permit or deny entry broaden.
Security access devices
This is a simple piece of hardware that controls door entry. A control unit near the door reads the authorisation code on the presented personalised tag, and signals the locking mechanism in the door.
This is widely used in areas where security for a limited number of staff is required.
There are several technologies in access cards available today: magnetic strip, microchip, RFID (radio frequency), bar code, signature recognition.
They are a popular choice for office towers, hotels and private homes with gated security. They are cheaper than tag entry devices, so used for mass entry rather than highly limited entry.
For highly sensitive work zones that need cast-iron access control, fingerprint authentication is a serious option for authorised personnel entry.
This obviates a need to carry an ID item.
By far, the most common form of access control is the door keypad that requires usually a four-digit code to release the electronic door lock.
This is the simplest, least expensive form of door control.