The application discloses a tunnel
smoke spread real-time prediction method based on physical priori and timing network, comprising the following steps: acquiring multi-source
timing data and preprocessing, and constructing multi-working condition
data set; constructing a mixed physical priori containing
smoke spread length priori and
smoke layer
height field shape priori; adopting intrinsic
orthogonal decomposition to reduce the dimension of the smoke layer
height field, and extracting spatial main mode and mode coefficient; constructing a multi-task prediction model based on a causal timing
convolution network, and synchronously predicting the smoke
backflow length and the mode coefficient; using a mixed
loss function fusing data fitting loss, physical priori loss and
smoothing constraint, and combining a progressive loading mechanism to
train the model; using the trained model to output the prediction result in real time, and reconstructing the smoke layer
spatial distribution. The application fuses physical priori and causal timing network, realizes real-time and high-precision prediction of the tunnel
fire smoke backflow length and the smoke layer
spatial distribution, and has the advantages of strong physical rationality, high generalization ability and stable prediction.