基于以太网的分布式智能门禁系统

Distributed and intelligent access control system based on ethernet

对现有多种传统门禁系统进行了研究,发现其多采用RS485传输方式,具有控制范围小和布线繁琐等局限性。为构建大规模跨地域的门禁管理系统,采用将以太网技术与传统门禁系统相结合的方法及软硬件协同设计的思想,研制出了一种模块化可裁减、基于以太网的分布式智能控制门禁系统。实践证明,该系统控制范围大且利用现有发达的网络,不必重新布线,可有效实现远程门禁控制。对系统的整体结构和各部分的工作原理进行了详细的说明。

It is found that the widely applied transmission method is RS485 with its disadvantages of limited control scale and multifarious circuitry according to the research on various traditional access control systems used nowadays. To build up a large-scale and domaincrossed modular access control system, a distributed and intelligent access control system based on Ethernnet is excogitated. This new system integrates Ethernet technology with traditional access control systems and adopts the idea of the hardware/software collaborative design. Proved by practice, remote access control is achieved by the new large-scale control system which makes use of the existing advanced network without rebuilding the net. Meanwhile, the general structure of the system and the principle of each part are also introduced in detail.