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功能安全的背景、概念、行业影响、意义在现代工业安全技术领域中,设备、系统、过程中越来越多地采用电子、电气设备以及可编程电子控制系统(E/E/PE)实现相关安全功能,工业控制系统若在安全性能方面存在薄弱环节,一旦相关安全系统及设备安全功能失效,很可能导致控制系统的故障停车甚至引发重大安全事故,为此,电厂(含核电)、化工、工业过程控制、起重设备、电梯和电动人行通道、汽车、轨道交通等行业先后引入了功能安全这个概念,以确保控制系统的安全性。
Functional Safety Background, Concept, Industry Impact, Significance In the field of modern industrial safety technology, more and more equipments, systems and processes are used to realize related safety by using electronic and electrical equipment and programmable electronic control system (E / E / PE) If there is a weak link in the safety performance of an industrial control system, once the safety function of the relevant safety system and equipment fails, it is likely to cause the control system to stop or cause a serious safety accident. Therefore, power plants (including nuclear power), chemical industry Process control, lifting equipment, elevators and electric pedestrian access, automobile, rail transit and other industries have introduced the concept of functional safety to ensure the safety of the control system.