Abstract: The paper mainly introduced the existing problems in operation of the original safety monitoring system. And by systematic analysis, the renovation plan was advanced. Accordingly, optimization of network structure of the acquisition system was carried out, lightning protection equipment and human interface were added and new MCU measurement and control device was adopted. The problem of slow running speed and lack of manual measurement and comparison module of the original system was solved, worthy reference.

Key words: safety monitoring, dicyclic self-healing, automation, remote control, renovation

摘要： 主要介绍了某大坝原工程安全监测自动化系统在运行过程中存在的主要问题，就此进行系统的分析，提出了改造方案。通过对工程安全监测自动化系统中的采集系统网络结构进行优化，增设了防雷电设备及人工接口装置，更换了新型的DAU测控装置，有效解决了原系统运行速度慢、无人工比测模块等问题，供后续工程参考和借鉴。

关键词: 安全监测, 双环自愈, 自动化, 远程集控, 改造