Radio-hydroacoustic remote control system and remote control method

Abstract

The invention provides a radio-hydroacoustic remote control system and a radio-hydroacoustic remote control method. The system comprises a ship-borne display and control platform, a radio communication base station, a water surface repeater station and an underwater responder, wherein the ship-borne display and control platform consists of a computer provided with operational software; the radio communication base station comprises a radio station and a universal serial bus (USB) data communication interface; the water surface repeater station comprises a radio station, a hydroacoustic emitting device and a hydroacoustic receiving device; and the underwater responder comprises a hydroacoustic emitting device and a hydroacoustic receiving device. In the system, a radio communication mechanism and a hydroacoustic communication mechanism are combined to establish an acoustic-electric integrated hybrid communication system; in the hydroacoustic communication, an encoding mode of FSK is adopted, a protective time slot is inserted between two adjacent code elements and a confirmation code element and a verification code element are established in a code block, so that the anti-multipath and reverberation capabilities of the system are improved; and inquire response and autonomous inquiry are combined, so that high-reliability half-duplex communication can be realized.

Description

technical field [0001] The invention relates to a remote control method, more precisely, it is an underwater acoustic and radio combined communication method for realizing high-reliable long-distance communication in a complex and changeable underwater acoustic environment. Background technique [0002] With the continuous advancement of science and technology, the technological level of human beings to find and develop resources in the ocean has also been continuously improved. Underwater equipment such as unmanned submersible vehicles (UUV) and underwater robots play an extremely important role in the fields of geophysical surveying, seabed landform detection, scientific investigation and mineral resource development. As a platform for information interaction between the water control platform and underwater equipment, the underwater acoustic remote control system provides the necessary guarantee for the underwater equipment to perform tasks reliably and safely. Therefore,...

AI Technical Summary

Problems solved by technology

Although spread spectrum communication has the characteristics of anti-interference and anti-multi-channel, the available frequency band of underwater acoustic communication is limited, and this method is seriously affected by Doppler; the pattern delay difference coding communication method can achieve a higher communication rate, However, this communication method is sensitive to multi-path interference, and it is difficult to meet the requirements of simultaneous interaction of underwater multi-nodes; FSK is a communication method with strong adaptability to the time and frequency expansion of underwater acoustic channels. Different single-frequency signals are used to represent digital information. At the receiving end, energy detection and judgment are performed on each single-frequency signal to obtain transmission information, and engineering implementation is relatively easy.

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