Underwater self-adaptive pressure reduction method based on air diving

The invention discloses an underwater self-adaptive pressure reduction method based on air diving, and belongs to the technical field of air diving pressure reduction, diving pressure reduction is divided into three modes including safe staying, deep staying and pressure reduction staying, the safe staying and the deep staying refer to that diving of a diver does not reach the pressure reduction-free time, and at the moment, the pressure reduction-free time is not reached by taking the water depth of 10 m as the boundary; when the depth of the diver is smaller than 20 m, the diver enters a safe staying mode, the diver stays at the water depth of 3-6 m for 3-5 min and then comes out of water, and if the water depth is larger than 20 m, the diver enters a deep staying mode. According to the underwater self-adaptive pressure reduction method based on air diving, the diving depth and the diving time of the diver are used for calculating the pressure reduction scheme in real time, the defect that the diving pressu