The design principle of access control system

Access control systems are also called access control systems. Common access control systems include: password access control systems, non-contact IC cards (inductive IC cards) access control systems, and fingerprint iris biometric access control systems. Now the world's most popular and most common is the non-contact IC card access control system. Non-contact IC cards have become the mainstream of access control systems due to their high security, best convenience and cost-effectiveness. The safety production access control information system is applied to a non-contact IC card safety production access management information system (hereinafter referred to as "one card" system).

The card system consists of a card reader, an IC card, a network access controller, an electric lock, a magnetic door, a push-button, an access control management host, a printer, and an access control management software.

The system adopts the method of splitting the controller and the reader, the reader is installed outdoors, and the system controller is installed indoors. The system communication adopts the network control type, and the communication mode adopts the TCP/IP protocol. The advantage of this type of system is that the controller and the management center transfer data through the LAN. The management center location can be changed at any time without rewiring. It is easy to implement network control or remote control. It is suitable for large-scale systems or scattered installation applications. .

Access control system hosts, database servers, branch office access control extensions, and access controllers are all connected by a TCP/IP network. The entire access control system can manage 64 network groups (branches), each network group can manage 64 subnet hosts, the entire system can manage tens of thousands of access points, fully able to meet the needs of large-scale system management or system expansion.

Network type access control system features: 1, supports a variety of connection methods, can be freely networked through RS232, RS485, TCP/IP, E1, optical fiber and other ways, you can easily achieve Internet Internet remote monitoring; 2, application communication server can be Supports cross-network and cross-node hybrid connections (different connection methods). 3. As the on-site access controller fully supports direct TCP/IP network connection, data such as credit card and alarm can be quickly uploaded to the management within 100ms. Host, so that data processing and action response is very fast; controller supports dynamic port insertion, pull out, the system can determine the controller in real-time, offline, and reflected in the host.

Access control system consists of access controllers, card readers (identifiers), IC cards, electronically controlled locks, cards, and other equipment (buttons, door magnets, power supplies, control power cords, and cable transmission equipment). 1. Access Control Controller Access Control The core part of the system is equivalent to the computer's CPU. It is responsible for the entire system's input and output information processing and storage, control and so on.