Model-based LNG central control and security monitoring system test verification method

The invention discloses an LNG central control and security monitoring system test verification method based on a model, and the method comprises the following steps: 1, analyzing the composition of an LNG central control and security monitoring system, and constructing a corresponding simulation model library; 2, according to the management and control requirements and the control technology of the LNG ship center control and security monitoring system, a simulation model of the LNG center control and security whole system is constructed; thirdly, communication interfaces of the LNG system simulation platform, the LNG IAS platform and the semi-physical model platform are studied; fourthly, the LNG simulation model and the semi-physical model serve as controlled objects, and test verification work of the LNG central control and security monitoring system is carried out; and 5, according to a test result, assisting program optimization and logic improvement of the LNG central control and security monitoring sy