Controllers, readers, identifiers

The controller is the basic element of the access control and management system. It is the controller that determines whether or not to let the owner of the identifier through the door, since it stores identifier codes with a list of access rights for each of them in its own non-volatile memory. When a person presents (brings to the reader) an identifier, the code read from it is compared with the one stored in the database, on the basis of which a decision is made to open the door.

 

Identifiers (key fob, card, label) are the basic elements of the access control and management system, which serve to determine the rights ("identification") of the owner.

 

Codes entered on the keyboard, or individual biometric signs of a person - a fingerprint, a pattern of the retina or iris, a three-dimensional image of a face can also act as an identifier.

 

Readers are the basic elements of the access control and management system that receive ("read") the identifier code and transmit it to the controller.

 

Reader options depend on the type of identifier: for a "tablet" - these are two electrical contacts (in the form of a "pocket"), for a proximity card - this is an electronic board with an antenna in the case, and for reading, for example, a pattern of the iris reader must include a camera.