CCTV
CCTV Camera is the use of video cameras to transmit a signal to a specific place on a limited set of monitors. In industrial plants, CCTV equipment may be used to observe parts of a process from a central control room, CCTV systems may operate continuously or only as required to monitor a particular event. Advantages of CCTV Camera System to find Deters Crime, Helps Maintain Records, Protects Employees and for Evidence in Lawsuits.
Access Control Systems
Access control is the ability to permit or deny the use of a particular resource by a particular entity. Access control mechanisms can be used in managing physical resources (such as a movie theater, to which only ticket holders should be admitted), logical resources (a bank account, with a limited number of people authorized to make a withdrawal), or digital resources (for example, a private text document on a computer, which only certain users should be able to read).
When a credential is presented to a reader, the reader sends the credential’s information, usually a number, to a control panel, a highly reliable processor. The control panel compares the credential’s number to an access control list, grants or denies the presented request, and sends a transaction log to a database.
When access is denied based on the access control list, the door remains locked. If there is a match between the credential and the access control list, the control panel operates a relay that in turn unlocks the door. The control panel also ignores a door open signal to prevent an alarm. Often the reader provides feedback, such as a flashing red LED for an access denied and a flashing green LED for an access granted.