River reach lockage ship draft detection method

A river reach lockage ship draught depth detection method comprises the steps that firstly, lockage ships passing a bayonet are captured through a plurality of thermal imaging wide-angle cameras on the two sides of a channel, and identity information (ship type depth and other information) of the lockage ships is obtained through AIS equipment; 2, accurately capturing mark information of a freeboard, a waterline, a water gauge and a load line of a lockage ship through a holder camera, and supplementing light at night through a light supplementing lamp; 3, transmitting the collected image and information to a draft detection platform; and 4, processing and analyzing the image and the information by the draft detection platform, and calculating to obtain the draft. The calculation method comprises the following steps: the method is used for solving the problems of misjudgment or missed judgment and inaccurate measurement result easily caused by artificial vision and manual measurement of the draft of the ship.