指纹识别在电视信号播出机房门禁中的应用

摘要

电视信号播出机房是广电运营商的核心,为了加强机房的安保管理,采用指纹识别技术设计了智能门禁系统,该系统由管理中心和多个门禁终端组成.门禁终端采用嵌入武处理器LPC2148作为控制核心,利用集成指纹识别算法的DSP模块TF-EM-M12采集和匹配访客指纹,并通过网络模块ENC28J60建立与管理中心的TCP/IP连接；管理中心主要负责与各门禁终端进行数据交互、存储访客资料、指纹信息和访问日志等.当访客的指纹与系统中注册的指纹匹配时,门会自动打开,并在LCD液晶屏上显示访客身份信息.该系统还适用于科研实验室、重要机关和高档公寓等场所,提高了门禁管理的安全性与方便性.%TV signals broadcasting room is the core of radio and television operator. In order to strength the security management, the intelligent access system is designed with finger print identify, and it is composed of management center and access control terminals. The access control terminal adopts embedded processor LPC2148 as control core, using DSP module TF-EM-M12 integrated with fingerprint recognition algorithm to get and match fingerprints of visitors, and establishes TCP/IP connection with management center through network module ENC28J60. The management center takes charge of data exchange, storing visitor information, finger print information and visiting log. When the visitor's finger print matches the finger print registered in system, the door will automatically open and display visitor's identity information on LCD screen. This system can be fit to research laboratory, important organs and luxury apartments that improves the safety and convenience of access control system.