Autonomous depth-fixed suspension underwater acoustic remote-control transmitting device

Abstract

The invention provides an autonomous depth-fixed suspension underwater acoustic remote-control transmitting device which comprises a main floating body, a buoyancy force adjusting device, a CTD (conductive Temperature Depth) sensor, a comprehensive controller, an encoder, a power amplifier, a transmitting transducer, an anti-collision sonar and a power manager, wherein the other components are installed in a watertight cabin in the main floating body; the CTD sensor is used for synchronously measuring depth and sound velocity and sending a measuring result to the comprehensive controller; the comprehensive controller is used for receiving the depth and sound velocity measured by the CTD sensor, judging whether thermocline exists according to the relationship that the sound velocity changes with the depth, selecting the transmitting depth of remote control signals according to a judgment result and sending a selecting result to the buoyancy force adjusting device, and is also used for controlling the encoder to generate remote control encoding signals. After the autonomous depth-fixed suspension underwater acoustic remote-control transmitting device is arranged, completely autonomous depth-fixed suspension operation can be achieved, appropriate remote control signal transmitting depth can be automatically selected, and thermocline under a severe hydrologic condition can be avoided so as to reduce sound transmission loss.

Description

technical field [0001] The invention relates to a long-distance underwater acoustic remote control transmitting device with an autonomous depth-fixed suspension type, and belongs to the technical field of underwater acoustic remote control. Background technique [0002] Underwater acoustic remote control is currently one of the most important and effective means for long-distance information transmission and control of underwater UUVs, underwater glider, submersible buoys, seabed foundations, etc. in engineering. The existing underwater acoustic remote control transmitting device basically adopts the method of hanging the transmitting transducer in the water when transmitting the remote control signal, and then connects the power amplifier and other equipment on the ship or on the shore through a cable, and generally requires an external power supply when using it. Auxiliary equipment such as cranes and cranes have certain requirements on ship conditions, staffing, sea condi...

AI Technical Summary

Problems solved by technology

In order to ensure the efficiency of remote control, it is necessary to avoid the thermocline and choose an appropriate depth. In many cases, it is even necessary to launch at a deeper depth, otherwise the remote control distance will be greatly reduced

However, the existing underwater acoustic remote control transmitters mainly adopt the method of hanging the transducer, which is easily limited by factors such as cable length, hanging counterweight, ocean current, wind force and wind direction, etc. Not only the hanging depth is limited, it is difficult to effectively control the launching depth, but also Its remote control distance is easily affected by hydrological conditions, and it is difficult to overcome

For example, the common method of increasing the transmission power to make up for the loss of remote control distance caused by harsh hydrological conditions is not only costly and difficult to design, but also greatly increases the volume and weight of the remote control transmitter, making it more inconvenient to use

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