Folded antenna arrangement for AUV

Abstract

The invention discloses a folding antenna device for an AUV. The invention aims to solve the problem that when an AUV sails underwater, an antenna of a traditional AUV is still kept in an upright state and becomes AUV sailing resistance, so that the sailing distance is reduced. According to the scheme, the sliding block connecting rod mechanism is used for achieving the antenna folding function, the overall structural design is novel, the device moving size is small, no redundant appendage exists during underwater navigation, and appendage resistance can be completely reduced; the AUV with theimproved design reduces the sailing resistance in water to the maximum extent, and can be used as an innovative mechanism design of a long-voyage AUV.

Description

technical field [0001] The invention relates to the field of marine and hydrological investigation instruments and equipment, in particular to a folding antenna device for AUV. Background technique [0002] Autonomous Underwater Vehicle (AUV) is the main tool for people to explore and develop the ocean. The range of AUV is crucial to the application of AUV. To achieve this goal, sailing resistance should be minimized and battery capacity maximized. Unlike tethered underwater vehicles, AUVs using wireless communication technology to interact with onshore technicians require a non-metallic antenna. When the AUV is navigating underwater, the radio attenuates quickly and basically cannot propagate, but the antenna of the traditional AUV remains upright, and the temporary "excess" appendage will inevitably become the resistance of the AUV's navigation, thus affecting the navigation distance. [0003] In order to solve this problem, Wang Guangyao and others designed "a liftable...

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Problems solved by technology

When the AUV is navigating underwater, the radio attenuates quickly and basically cannot propagate, but the antenna of the traditional AUV remains upright, and the temporary "excess" appendage will inevitably become the resistance of the AUV navigation, thus affecting the voyage distance

[0003] In order to solve this problem, Wang Guangyao and others designed "a liftable antenna device". Although it can effectively reduce the windward area of ​​the attachment and thus reduce the resistance, the antenna is small in size and still has the resistance of the attachment; Shen Hongbin and others used The double rocker mechanism realizes the folding antenna. The scheme is effective and feasible, but there is a disadvantage of a large movement space of the double rocker mechanism, which occupies a large space in the AUV space that is not ample

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