This system, following the chiliachs system of Yuan and the system of the place guarded by soldiers of Ming, incorporated the citizens who were used to life on the sea into the navy in the ratio of one out of three households.
元の千戸制・明の衛所制にならい、沿海の諸州郡の水上生活になれた住民を3戸に1戸の割合で水軍に編入した。