The invention discloses a special
gas holder safety control method and
system based on multi-parameter monitoring, and the method comprises the steps: collecting the
gas concentration, environmental parameters,
equipment state and other multi-dimensional data inside and outside a special
gas holder through a distributed sensor network, carrying out the adaptive filtering and
time sequence feature extraction, and constructing a dynamic risk portrait in combination with a process situation. An LSTM-VAE
hybrid model, a gas reaction
knowledge graph, an improved D-S evidence theory and a pipeline topology propagation model are utilized to calculate an abnormal
score, a gas interaction risk
score and a space risk
score respectively, a comprehensive risk value is generated through dynamic weighted fusion, risk grades are divided, and a hierarchical control strategy is triggered. When the risk is abnormal, leakage source positioning and
gas mixing traceability are automatically started, and a diagnosis report is generated. The
system realizes closed-loop management of monitoring, early warning, response and
traceability, integrates a data driving method and a knowledge driving method, and improves the
risk identification accuracy and the disposal intelligent level.