Access control is mainly based on the door. Various access control devices are installed inside and outside the controlled door and above the door:
When the cardholder intends to enter the door, he will use the proximity card to swipe the card on the card reader outside the door, enter the password on the PIN pad, or use a biometric device such as a fingerprint reader, palmprint reader, retinal reader, etc. to check identity.
When the cardholder swipes the card, the information is transmitted to the controller near the door, and the computer in the controller recognizes that the cardholder is qualified to enter, and then sends a control signal to the electric lock above the door (or on the side of the door) , to open the door for the cardholder to enter.
After the cardholder enters the door, the door will be automatically closed (using floor springs, door closers, etc.). An induction device (lock status sensor) is often installed in the electric lock. Once the door or the electric lock is in the open state, it will send a signal back to the controller. When the door is opened for too long, the controller or the electric bell will make a sound , inform the person who opened the door to close the door quickly (this phenomenon is often seen at the door of hotel rooms).
When the controller opens the door, the cardholder's information is transmitted to the access control management computer in the computer room. After the computer receives the information, it will store the information and display it on the screen, and at the same time send the information to related software (such as attendance software, etc.).
When the cardholder intends to go out after finishing his work, he can press the exit button on the inner side of the door (when swiping the card in one direction. If the card is swiped in two directions, the card must also be swiped on the inner side of the door), and the door will open automatically. If the cardholder's information is not registered, the controller will not open the door. Only after the card information is entered into the management software and downloaded to the controller's memory, the controller will open the door when swiping the card. When the access control system is powered off, the system automatically puts the electric lock in the open state, allowing people to come in and out freely. In order to avoid being unable to escape in the event of a fire.
Author:Written by Ms.Vivian He from S4A INDUSTRIAL CO.,LIMITED
Factory Address:Building S4A, South Third Lane, Qiuyuling Street, Zhangkeng Village, Hengli Town, Dongguan City, Guangdong Province Office Address:#601,floor 6 ,building 1,JINFANGHUA industrial zone, Bantian St. Longgang Dist. Shenzhen, PRC.
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