Safety system engineering is mainly to forecast, evaluate and control systemic risks, including accident cause theory, safety evaluation, safety management and early warning and emergency response. In 2019 with the rapid development of the Internet, other than continuously developing classic research subjects, the security system engineering also presented trends such as big data sharing and intelligent evaluation warning systems. Accident tree analysis has achieved a breakthrough from static planary accident tree to dynamic spacial accident tree. With the improvement of fuzzy algorithms and development of cloud computing models, the accuracy of analytic hierarchy process is improved, making safety evaluation more on line with actual situation. Construction industry, mining, chemical production and other industrial fields have more intelligent safety early warning systems and more scientific production management systems. Disaster risk prediction and emergency response systems have been put into use in some pilot cities for social public safety.

safety system engineering  /  systemic risks  /  safety assessment