In the process of performing underwater tasks, divers generally use signal ropes as the main communication tool, that is, by pulling and shaking the signal ropes to form a series of signals to achieve simple communication on land. This communication method is convenient and direct, but its The disadvantages are also obvious: the signal rope can only achieve the expression of a limited amount of information, and the signal transmission process is extremely vulnerable to the interruption or failure of the complex seawater environment, which brings security risks. In 2015, divers' signal ropes were entangled. It is almost an accident. It can be said that when performing underwater tasks, divers are truly a lifeline. In view of the many shortcomings of signal ropes, combined with the rapid development of smart wearable devices in the civilian field, intelligence for military diving Wearable products have gradually become one of the hot spots for research and development of science and technology workers. The most likely next paragraph of this text is:. ['Key technologies for smart wearables in military diving.', 'Defects of signal ropes in transmitting information in the military field.', 'Development status of smart wearable devices in daily life.', 'Prospects for the introduction of artificial intelligence technology into wearable devices.']