Access Controller is the combination of Access rights and how these rights can be controlled.Access means entering or using or consuming so to restrict any of these is known as Access Control. It is a necessary tool to put restriction to access our important information and places.Several type of restriction are there like to restrict humans to enter highly secured place,to restrict one to access our information on computer. It is just like to create firewall at the place where you do not want anyone to enter.
Controllers are used to provide different functions to the biometric devices.Different controllers have different functions like Anti-passback, Interlock function , Linkage function, Multi-Card Opening function, Remote door opening. These controllers comes with large storing capacity of users as they have their own memory and they are fast as they have high RAM. With the help of these controllers Real-time monitoring can be done. They come with input and output end.
Today is the world of Information. It can be of any type like Business information, Secret files and tenders, Person Information etc. so control on access is necessary.Traditional methods are there for access control like guards are kept at Corporate houses, Apartments, Secret places etc.Firewall is created which restricts to access our Computer. One can only enter if he has the permission of. After checking whole necessary things one is authorized to enter a respective place. This process is known as Authentication.
Access Controller consists of three W’s ;Who,Where and When. With the help of this system one can know that Who are allowed to enter or exit, Where they are allowed to enter or exit, and When they are allowed to enter or exit. This is partially implemented with keys and locks.Only the person who has key can the door. It has some limitations like it does not authorize a person which results in lack of privacy. Anybody with the key can access the place. If the key is lost you are helpless until you have a duplicate key or you break the lock.
Biometric machines overcome these limitations as it first carry out the authentication process and then provides permission to access. Several types of Authentication are done like Fingerprint Authentication,Face Authentication, Card Based Authentication, Finger with Vein Authentication etc. and combinations of these.In these biometric machines one who is Owner of the firm or the one who is Head of Incharge can get Admin access means that without the permission of the Owner or the Head of Incharge nobody can enter through the door. Not only this Machines also keep records of the persons who entered the door and alerts if anyone tries to enter without right permission. Alerts are made with the help of Alarms.
Access Controller are categorised as:-
|Multidoor Controllers||Elevator Controllers||Standalone Devices|
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