The underwater robot cable is an important link between the underwater robot (ROV) and the surface control station, and it undertakes multiple functions such as power transmission, signal transmission, and data transmission. The design and use of umbilical cables are crucial to the working efficiency and safety of underwater robots. The relationship between underwater robots and umbilical cables is like the relationship between a baby in the womb and the mother, which can deliver a steady stream of nutrients. The underwater robot and the umbilical cable also have the same relationship. The umbilical cable provides a steady stream of power output for the underwater robot, which is called the "lifeline". Function of umbilical cable The core function of the umbilical cable is to provide a continuous energy supply and stable signal transmission for the ROV. The umbilical cable usually contains power cables, signal cables, optical fibers, etc. These cables work together to ensure that the ROV can receive instruc