Large engineering ships, floating cranes, oil tankers, barges, anchorages and other engineering facilities will use cable winches to tension and fix the cables in place during construction, berthing, traction and docking. The traction force and braking force of the cable winches need to be monitored in real time, and an obvious alarm will be given in case of overload. When the torque is exceeded, the brakes can be released in a planned way to ensure that the cables, windlass and ships do not have accidents.