What is the principle of the access control system?
What is the principle of the access control system? Chengdu access control system, also known as entrance and exit control system, is an intelligent control system for the entry and exit of management personnel and items. It integrates microcomputer automatic identification technology and modern safety management measures, and involves many new technologies such as electronics, machinery, optics, computer technology, communication technology, and biological technology. So, what is the principle of the access control system? Let me introduce to you the principle of Chengdu access control system! The principle of Chengdu access control system The card reader is used to read the smart card information of the person who swipes the card, and then convert it into an electrical signal and send it to the access control controller. The controller judges whether the cardholder has been authorized by the software according to the received card. During this period, you can enter the gate and perform work such as unlocking and locking according to the results of its judgment. Independent access control system principle Independent access control is a non-network type, each door lock is independent, and its information reading is usually plug-in and inductive. The principle is that the card reader is used to read the card reader’s smart card information (card number), and then convert it into an electrical signal to send to the access control controller. The controller uses the software to determine whether the cardholder has obtained the card number according to the received card number. It is authorized to enter the gate during this period of time, and complete work such as unlocking and maintaining the lock according to the judgment result. Principle of networked access control system The networked access control system is composed of a controller, a card reader, an electric lock, a door opening button, etc. It manages all the information analysis and processing in the system through the computer equipped with the software of the access control system. The principle is that the controller receives the personnel information and the corresponding authorization information sent from the management computer, and at the same time transmits the card entry and exit records to the computer. A single controller can form a simple access control system to manage one or two doors. Multiple controllers are connected to the computer through the communication network to form the entire building's access control system, Chengdu access control system.