Abstract: A pneumatic fender includes: a ring-shaped metal fitting housing that is mounted on at least one end of a pneumatic fender and forms a penetrating part penetrating the inside and outside of the pneumatic fender; a plate-shaped flange that is mounted on the penetrating part to block the inside and outside of the pneumatic fender; a wireless transmitter that is mounted on the front surface of the flange defining a surface formed in the external direction of the pneumatic fender; a cover that is mounted on the front surface of the flange; a shaft that has a predetermined length and is mounted on the rear surface of the flange; a position sensor that is mounted on the internal direction end of the shaft and generates position information of the pneumatic fender; and a reflective member that is connected to the shaft between the flange and the position sensor.

Abstract: A port monitoring system including: a port environment detection unit in which it is important to monitor the accurate position and posture of ships, especially large ships, in a port (or harbor), and which monitors the position and status of fenders in the port, and measures the environmental conditions of the port and thus generates port environment information to integrally manage ships and fenders in order to efficiently manage the port; a ship monitoring unit which is included in a ship and generates ship information of the ship; a fender monitoring unit which is included in a fender and generates fender information of the fender; a network; and a port management unit.

Abstract: Disclosed herein is an insulating bushing adapted to protect a busbar and having improved waterproof performance. The insulating bushing includes: a first bushing provided with a first bushing passage through which the busbar passes; a second bushing provided with a first bushing-receiving portion receiving an upper portion of the first bushing inserted through a lower portion of the first bushing-receiving portion and a second bushing passage through which the busbar passes; and a cover coupled to an outer surface of the second bushing and provided with a cover passage through which the busbar passes.