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Tritech Micron Inertial Navigation System (INS)

The Micron Inertial Navigation System (INS) for ROVs and AUVs has been developed to allow small subsea vehicles the ability to obtain previously unattainable position stability.

The Micron INS has been designed to work seamlessly with Tritech’s MicronNav USBL system and as a truly plug and play INS solution, brings fully automated ROV control one step closer.

The Micron INS can be deployed stand-alone or aided by a wide range of aiding sensors on the vehicle such as DVL, GPS and USBL.

The Micron INS is supplied in a single subsea bottle equipped with integrated core inertial sensors, attitude sensor and a depth sensor. The system has a mounting bracket available and this, along with additional software configuration utilities, makes vehicle integration easy, accurate and reliable. The Micron INS calculates heading, position, attitude, velocity and depth using high rate data from an advanced miniature core MEMS Inertial Measurement Unit aided by an integrated high accuracy pressure sensor and triaxial set of magnetometers.

The Micron INS also supports integration with USBL, DVL, altimeter and GPS units for increased accuracy. Proprietary time correlation algorithms and an Extended Kalman Filter (EKF) optimally fuse and filter the data from these various integral and external sensors to provide a robust navigational solution. The Micron INS is fully supported through Tritech's MicronNav USBL system for integration and operation with Tritech's subsea navigation products. A stand-alone Graphical User Interface (GUI) also provides a rich 2D chart plotting, navigation and diagnostics display as well as configuration utilities for commissioning and testing the Micron INS.

When used in conjunction with a Tritech sonar, the user benefits from the multiplexing capabilities of Tritech products, removing the need for additional communication channels on the ROV. The Micron INS is constructed around a modular software architecture, allowing Tritech to offer optional software modules which can expand the capability of the base Micron INS system. The modules can provide varying degrees of vehicle control, please contact Tritech for further details.

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