Pipe gallery water leakage detection method and device

The invention discloses a pipe gallery water leakage detection method and device. By monitoring the humidity of an air inlet and an air outlet of a pipe gallery section in real time, the first humidity detected on the air inlet and the second humidity monitored on the air outlet are acquired; after the first humidity and the second humidity are input in a neutral network formed by RNN units and fully-connected structures, an output result is obtained, the neutral network comprises an input layer, a hidden layer and an output layer, the hidden layer comprises a first hidden layer body and a second hidden layer body, and the first hidden layer body comprises the 4 recursive RNN units; and the pipe gallery section is subjected to water leakage prewarning by judging whether the output result is larger than or equal to a preset threshold value. By comparing humidity data at the two positions of the air inlet and the air outlet of the pipe gallery section, the influences of external environments on the interior of