摘要
随着电子信息技术的发展,电子门锁的使用越来越广泛。为了满足信息管理的要求,使用门禁控制器构建网络化的门禁系统就显得较为重要。本文设计实现了一种低成本的嵌入式门禁控制器。该控制器以STM32F407微处理器为核心,利用LAN8720A提供以太网接入功能,利用MAX3486提供485总线访问功能,实现了网络化门禁管理;采用轻量级的LWIP网络协议栈提供TCP/IP服务,采用HTML语言设计了网页,并利用SSI技术实现了与网页的信息交互。该控制器与电子门锁构成的门禁系统具有稳定性较好、安全性较强、便于二次开发等特点,能够支持上位机进行更多功能扩展。
With the development of electronic information technology,the usage of electronic door lock is more and more widely.For meeting the requirements of information management,it is more important to use access controller to build networked access control system.This paper designs and implements a low-cost embedded access controller.The controller takes STM32f407 microprocessor as the core,uses LAN8720a to provide Ethernet access function,uses max3486 to provide RS485 bus access function,and realize networked access control management.It uses LwIP network protocol stack to provide TCP/IP service,uses HTML language to design webpage,and uses SSI technology to realize information interaction with webpage.The access control system composed of the controller and the electronic door locks has the characteristics of good stability,strong security and easy secondary development,and can support the host computer to expand more functions.
作者
金鑫
朱金涛
朱中旭
Jin Xin;Zhu Jintao;Zhu Zhongxu(School of Physics and Electronic Engineering,Hubei University of Arts and Science,Xiangyang Hubei,441053)
出处
《电子测试》
2021年第1期31-32,23,共3页
Electronic Test
基金
2017年襄阳市科技研究与开发一般项目“智能电子门禁系统的关键技术研究”。
