Access Control System – How They Help Protect You?An access control system is defined as to selectively restrict the access of a certain person to a place or any other resource. The act of accessing here means the act of consuming, entering or the usage of any sort of thing or resource. Now, in terms of usage, this access control system is widely being used for the sake of security and safety. The selective restriction enables us to allow only the reliable people to come and access to any resource or any sort of a particular important place.
Mainly, the system is installed on to the doors of the very place and the verification in that system is required in the form of any credential. The very person who needs to access any certain place has to provide the credential to the reader in the system. When the credential is presented to the reader, the information of the credential is sent by the reader to the control panel. Now, the information of the credential can be of many types. It is usually any sort of a specific number maybe the identity card number, but nowadays, finger prints or the hand prints are also being extensively used. The information of the credential in any form is sent to the control panel of the system.
The control panel of the system is a very reliable processor. The access control system is also given an access control list. The list contains the information of the credentials of those selected people who are allowed to access the very place or the resource. So, the control panel compares the credential's information with the access control system. And, according to that very verification, the system allows or denies the presented request, and then the control panel sends a transaction log to a database. Based on the access control list, the permission may be granted and maybe not. When the access is denied, the door remains locked and if access granted, the door opens up. Access is granted and the door is opened in a way that when the control panel finds a match between the credential's information and the access control list, then it operates a relay that in turn opens the door. And, in some cases, if installed, the control panel makes an alarm for an unsuccessful attempt to open the door.
The system also monitors the door and the alarm if it is found that the door is being forced open. Often, in some access control systems, there is a system in which the reader provides a feedback for the matching or not matching the information of the credential with the access control list. If the information matches and the door is to be opened a flashing green LED is used to show the granted access and in case of the access denied, the reader provides a flashing red LED. These access control systems are hence very useful and due to this they are being extensively used all over the globe. Just give them a try!