RU2566564C1 - Method of positioning of underwater equipment with reference to carrier vessel - Google Patents

Abstract

FIELD: radio engineering, communication.

SUBSTANCE: method of positioning of underwater equipment with reference to the carrier vessel requires the conducting rope, the screened conducting rope and the software. On the screened conducting rope equidistantly the screened accelerometer units are installed. The software processes in real time the information from the accelerometer units on their spatial position in space which converts it in the real trajectory of the conducting rope in 3-D format. The trajectory of the conducting rope defines the real position of the underwater equipment with reference to the carrier vessel.

EFFECT: noise immunity of underwater equipment positioning system.

1 dwg

Description

The invention relates to systems for positioning underwater vehicles and can be used for positioning any underwater equipment designed for the search and diagnosis of underwater objects.

Known sonar positioning systems (GPS) of underwater vehicles designed to determine the exact coordinates of underwater objects, parameters and the trajectory of their movement relative to the carrier vessel in real time [1] (http://www.teus-pro.ru/catalog/329 / 1002 /).

The principle of operation of the hydroacoustic positioning system is to determine the position of the transponder beacon installed on the underwater object relative to the carrier vessel. To do this, the vessel is equipped with one or more sonar antennas (GA), transmitting and receiving signals from transponder beacons. Based on the parameters of these signals, the surface processing unit, built on the basis of a personal computer, determines the bearing and distance to the transponder beacon. In the future, special software displays the parameters and the trajectory of the underwater object on the operator’s monitor. When connected to a GPS or GLONASS global positioning system, it is possible to display all data in absolute geographical coordinates.

The disadvantages of this system are the need to equip each descent facility with a responder beacon and an appropriate adapter for its fastening, as well as the effect on the accuracy of indications of possible electromagnetic interference.

The aim of the proposed method for positioning underwater equipment relative to the carrier vessel is to create a universal, noise-proof system for positioning underwater equipment relative to the carrier vessel.

The specified goal is achieved through the use of:

- shielded cable-cable, on which shielded blocks of accelerometers are installed at equal distances;

- software that processes in real time information from accelerometer units about their position in space, converts its trajectory of the cable cable and determines the position of underwater equipment relative to the carrier vessel.

The essence of the present invention lies in the fact that the inventive method for positioning underwater equipment relative to the carrier vessel, including the presence of a cable cable, according to the invention involves the use of a shielded cable cable on which shielded accelerometer blocks are installed at equal distances, and the presence of software, processing real-time information from accelerometer blocks about their position in space, converting it into a real cable path - a cable in 3-D format and determining the actual position of the underwater equipment relative to the carrier vessel.

The drawing shows a diagram of a method for positioning underwater equipment relative to the carrier vessel, where:

1 - carrier ship;

2 - cable cable;

3 - underwater equipment;

4 - block accelerometers;

5 - information processing point.

The method is as follows.

Underwater equipment 3 descends from the carrier ship 1 on the cable cable 2 to the place of underwater examination 3. Under the influence of underwater currents and due to the presence of the cable cable 2 windage, it deviates from the vertical. The blocks of the accelerometers 4 provide information about the orientation in space of the sections of the cable-rope 2 in the places of their installation. The minimum number of accelerometer blocks 4 is at least three.

The software of the information processing center 5 converts in real time the information from the accelerometer blocks about their position in space into the real trajectory of the cable-rope in 3-D format and determines the real position of the underwater equipment relative to the carrier vessel.

A shielded cable-cable 2, on which shielded blocks of accelerometers 4 are installed at equal distances, provide noise immunity of the system.

Thus, a universal, noise-free positioning system for underwater equipment relative to the carrier vessel is implemented, designed for the search and diagnosis of underwater objects.

The source of information

1.http: //www.tetis-pro.ru/catalog/329/1002/

Claims (1)

A method for positioning underwater equipment relative to the carrier vessel, including the presence of a cable cable, characterized in that it further offers the use of a shielded cable cable on which shielded accelerometer blocks are installed at equal distances, and the use of real-time processing software from accelerometer blocks about their position in space, converting it into a real cable trajectory in 3-D format and determining the real the position of the underwater equipment relative to the carrier ship.