The present application belongs to the field of
process safety management and
industrial internet technology, and particularly relates to a kind of dynamic evaluation method and
system for LNG receiving
station operation discipline. The method comprises: real-time acquisition of DCS operation log, alarm
record and informal communication data, extraction of three dynamic indexes of interruption
recovery time R(t), response diversity D(t) and informal communication
network density C(t); a five-state
nonlinear system dynamics model is constructed, and state variables include R(t), D(t), C(t),
trust level T(t) and work load W(t); Monte Carlo
simulation is used to sample the key uncertainty parameters, and the statistical distribution of
system safety margin S(t) is obtained by running
simulation; when S(t) is lower than the preset threshold, a risk warning
signal is output. The present application provides a specific method: by real-time acquisition of the deviation value of operation sequence and standard discipline template, the adjustment coefficient of intelligent adjustment effect degree to deviation change is calculated, and then the
safety margin prediction value of the
system under the current working condition is output, to fill the above technical gap, and to provide effective
technical support for
process safety management of high-risk enterprises such as LNG receiving
station under the background of industrial 4.0.