门禁系统作为安防系统中的一个重要部分，随着人们的生活水平和工作的质量的提升，其技术要求也得到了相应的提升。同时在楼宇自动化中门禁系统也得了很多的重视。它以计算机技术为主体，涉及了电子、机械、光学、通讯技术、生物技术等多种技术用来有效的对出入口进行控制，并且限制出入人员的权限。计算机系统通过门禁锁实现对出入口的控制，而最多只需要一个人在中心监控室实现有必要的人为控制。本课题就是以ARM为主控制器，将嵌入式技术和射频识别技术应用到门禁系统中，利用嵌入式系统丰富的控制器资源、对实时多任务有很强的支持能力、可扩展的处理器结构方便以后功能的完善，同时射频技术来检测IC卡，通行的人用IC卡来获得进入的权限。

 

 

 

 

 

Access control system as an important part of the security system, with the enhancement of people's living standards and the quality of work, technical require ments has also been a corresponding increase. Access control systems in building automation also got a lot of attention. Computer technology as the main body involved in the electronic, mechanical, optical, communications technology, biotechnology and other technologies used to control the import and export, and to limit access permissions. Computer system to control the import and export through access control lock up only one person in a central control room to achieve the necessary human control. The sub ject is the controller, ARM-based embedded technology and radio frequency identifi cation technology to the access control system, embedded system controller, a strong ability to support real-time multi-tasking, scalable processors structure to facilitate future improve the function of the radio frequency technology to detect IC card, IC card access to get permission to enter.

 

 

Key words :Access control system ， embedded  technology ， ID technology