控制部分是安防监控系统的核心，它完成模拟视频监视信号的数字采集、MPEG-1压缩、监控数据记录和检索、硬盘录像等功能。它的核心单元是采集、压缩单元，它的通道可靠性、运算处理能力、录像检索的便利性直接影响到整个系统的性能。控制部分是实现报警和录像记录进行联动的关键部分。
The control part is the core of security monitoring system. It completes digital acquisition of analog video surveillance signal, MPEG-1 compression, monitoring data recording and retrieval, hard disk video recording and other functions. Its core unit is the acquisition and compression unit. Its channel reliability, operation and processing ability, and the convenience of video retrieval directly affect the performance of the whole system. The control part is the key part to realize the linkage between alarm and video recording