Access Control



Different Access Control System

Access control is a technique used to selectively restrict or grant access whilst eliminating the standard mechanical lock-and-key system. As technology has improved, access control systems have gained a high level of sophistication. Instead of the usual mechanical key used to open a padlock, modern access control systems use an electronic-based access control system employing the usage of electronic swipe cards, keyless entry systems, touch screens and biometric scanners.

An access control system is designed such that it is convenient and speedy in granting access to the authorized person, while restricting the unauthorized people out of the protected area. There is different access control methods implemented these days; some of the most popular are detailed below.



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Touch Screens - Touch screens are the most common electronic access control system is using a keypad to authorize entry. The keypad is a set of buttons arranged in rows and columns and usually features numbers, alphabets and other symbols. The electronic lock is programmed to open to only one specific password or a set of passwords. Only the person who knows the password can enter or exit the premises; one has to just input the password in the keypad to be granted access. Advances in touch screen technology have made it very simple to replace the mechanical keypads with touch screens. Being one of the widely used access control systems, they're used extensively at the main entrances to residences and office buildings. They're simple to install and maintain, and are very easy to operate.

Keyless Access - A keyless access system uses an electronic lock to grant access to a protected site or vehicle. The most basic keyless access was using number pad or keypad to enter a password. However, it has been far surpassed now by keyless pendants or remotes. These keyless pendants work by automatically transmitting radio signals when they're in the proximity of an authorized electronic lock, which then opens granting access to the keyless pendant-bearer.

Security Swipe Cards - Security swipe access cards are the electronic equivalent of a mechanical key. Instead of using a simple mechanical lock, an electronic card reader is used to identify the proper authorized user. Electric lock hardware is used in conjunction with the card and the reader to work as an access control system. Each card is uniquely encrypted and is usually the size of a standard credit card. The card reader can either ask for the card to be inserted in it or swiped. The proximity swipe cards are quickly becoming the industry standard for its ease of use.

Fingerprint Scanners - Fingerprint recognition is a form of biometric authentication of a human by their unique fingerprint pattern. The access control system here uses fingerprint data derived from a sensor to match it with a database of pre-stored fingerprint templates. The fingerprint sensor uses light, ultrasound or capacitive screens to detect the fingerprint. The Unit then compares it against a list of other fingerprint patterns that have been granted access. Fingerprint scanners are the best access control systems when speed, reliability, security and cost are all taken into consideration. They are seen primarily in high security establishments, however with their costs reducing, will be employed elsewhere. Some other advanced access control systems such as facial recognition and iris recognition are also gaining increased acceptance.