Underwater self-folding antenna

Abstract

The invention relates to the technical field of underwater vehicle communication and particularly relates to an underwater self-folding antenna comprising an antenna assembly, an electronic cabin, a base, a driving mechanism and a bottom seat. The base and the driving mechanism are all arranged on the bottom seat, a rotating shaft is arranged in the base, the rotating shaft is driven to rotate bythe driving mechanism, the electronic cabin is connected to the base, the electronic cabin is driven to swing by the rotating shaft, the antenna assembly is mounted at an end of the electronic cabin away from the bottom seat, an electronic pressure switch is arranged on the electronic cabin, and the driving mechanism controls start and stop by the electronic pressure switch. When the underwater self-folding antenna does not need to communicate, the antenna assembly is laid down inside an aircraft, the antenna assembly is erected when the communication is needed, the navigation resistance of the underwater vehicle is effectively reduced, the antenna assembly is avoided from being hit, and unnecessary energy loss is reduced.

Description

technical field [0001] The invention relates to the technical field of underwater vehicle communication, in particular to an underwater autonomous folding antenna. Background technique [0002] Iridium antennas, radio antennas, and strobe lights are important components of autonomous underwater vehicles, and are crucial for vehicle position indication, surface communication, and recovery. If the iridium antenna, radio antenna, and strobe light are placed inside the aircraft, it will affect the signal reception strength or even fail. For example, the wind and waves at sea are strong, the aircraft fluctuates violently on the water surface, and the antenna is submerged in the water surface, etc. will cause signal reception failure. , so the iridium satellite antenna etc. are all installed outside the underwater vehicle in the prior art, and have a certain height. But on the other hand, when the antenna is fixed on the outside of the aircraft alone, the aircraft will generate g...

AI Technical Summary

Problems solved by technology

If the iridium antenna, radio antenna, and strobe light are placed inside the aircraft, it will affect the signal reception strength or even fail. For example, the wind and waves at sea are strong, the aircraft fluctuates violently on the water surface, and the antenna is submerged in the water surface, etc. will cause signal reception failure. , so the iridium satellite antennas in the prior art are all installed outside the underwater vehicle, and have a certain height

But on the other hand, when the antenna is fixed on the outside of the aircraft alone, the aircraft will generate greater resistance when navigating underwater, and the water flow will impact the antenna and other devices for a long time, and the antenna may be damaged and affect communication. After the underwater vehicle is submerged, the ship will no longer communicate because it cannot receive the signals from the antenna and other devices. However, the antenna and other devices are still sending out signals, which will consume the limited energy of the underwater vehicle and cause unnecessary energy loss.

Images