中央人民广播电台是国家电台,是中国最重要、最具影响力的媒体之一,其安防工作极为重要。为了增强安防系统的功能,提高可靠性,中央台在2005年对系统进行了改造,构建由视频监控系统、门禁系统和防盗报警系统三个子系统组成的数字化立体安防系统,最终实现系统的“四化”,即前端一 The Central People’s Broadcasting Station, a national radio station, is one of the most important and influential media in China. Its security work is extremely important. In order to enhance the functions of the security system and improve the reliability, CCTV transformed the system in 2005 and constructed a digital three-dimensional security system consisting of three subsystems: video surveillance system, access control system and anti-theft alarm system. Finally, the “four化 ”, that is, the front one