关键控制包括安全控制和基础控制,是控制中最关键的一层,所以称之为关键控制。我们提到安全的时候,过程安全领域的人会第一时间想到过程安全,但是很多其他行业的会想到机器安全,两者之间是有本质区别的,过程安全的控制系统是一个容错系统,机器安全是一个故障安全系统。 The key control, including safety control and basic control, is the most critical layer of control, so it is called the key control. When we talk about safety, people in the field of process safety think of process safety for the first time, but many other industries think of machine safety. There is a fundamental difference between the two. Process-safe control system is a fault-tolerant system, Machine safety is a fail-safe system.