Emergency load rejection and position indicating device and method of unmanned underwater vehicle

Abstract

The invention provides an emergency load rejection and position indicating device of an unmanned underwater vehicle. The emergency load rejection and position indicating device of the unmanned underwater vehicle comprises an emergency load rejection unit with a counterweight. A position indicating unit is arranged below the counterweight. The counterweight is located between the underwater vehicle and the position indicating unit. The position indicating unit comprises a floating body. The floating body is internally provided with a communication positioning antenna, a control unit, a battery and a water depth pressure sensor. The underwater vehicle, the counterweight and the floating body are connected through explosive bolts. The explosive bolts movably penetrate through through holes in the counterweight and then are fixedly connected with the floating body. The control unit comprises a single chip microcomputer, a communication positioning module and a control circuit. A communication cable is arranged between the single chip microcomputer and the communication positioning module. A transmission wire is arranged between the water depth pressure sensor and the single chip microcomputer. The single chip microcomputer controls ignition of the explosive bolts through the control circuit. The communication positioning antenna is connected with the communication positioning module through a feedback line. Power is supplied to the position indicating unit through the battery. The invention further provides a corresponding emergency load rejection and position indicating method. According to the emergency load rejection and position indicating device and method of the unmanned underwater vehicle, the dual functions of emergency load rejection and position indicating can be achieved, and the searching efficiency and the success rate are improved.

Description

technical field [0001] The invention relates to the technical field of emergency safety equipment, and in particular to an emergency dumping position indicating device and method applied to underwater emergency dumping of unmanned underwater vehicles and marking the position of the vehicle on water. Background technique [0002] Unmanned underwater vehicle refers to a small underwater self-propelled carrier that can be recovered for marine environment detection and monitoring, marine scientific investigation, marine resource exploration, underwater search and rescue, etc. It is a kind of autonomous long-distance navigation underwater for a long time unmanned intelligent small equipment platform. In order to improve the safety of underwater equipment, it is usually necessary to be equipped with an emergency dumping device. When an emergency occurs in the underwater equipment, the dumping device is triggered to throw off the ballast weight, so that the underwater equipment is ...

AI Technical Summary

Problems solved by technology

In the prior art, unmanned underwater vehicles generally do not have a position indicating device, and the position of the vehicle cannot be identified after dumping. Some deep-sea equipment also uses floating bodies. The floating bodies are usually connected with deep-sea equipment by ropes. When the situation arises, the oil cylinder is usually used to drive the contact with the floating body and release the floating body. Due to the limitation of the rope, it can only float up to the surface of the seawater. The target of the floating body is small, and the search process is like finding a needle in a haystack, which requires a lot of manpower and material resources

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