The MicronNav system is an innovative USBL positioning system designed for small vehicles. It has been primarily designed to be used in conjunction with the Tritech Micron/SeaSprite sonar and other Tritech Micro products. This
concept will also be adapted and integrated into the Tritech SeaKing range of products in the future.

FEATURES:

• Quick and easy to mobilise
• Integrated motion sensor in dunking transducer
• Seamless integration into Tritech’s Seanet Pro
• software control system.
• Connects via the “aux port” of Tritech’s sonar systems - no need for extra umbilical communications channels.

Applications:

• Mini/Micro ROV navigation system
• Diver tracking system (optional transponder mode)
• AUV tracking system (optional transponder mode)
• ROV location beacon (optional transponder mode)

The system comprises of a subsea MicronNav unit, a surface USBL transducer unit with integral Magnetic Compass and Pitch/Roll sensors, a surface MicronNav100 Interface module and operating software under control of the
customer host PC/Laptop.

MicronNav uses the very latest in Spread Spectrum acoustic technology. This provides a robust method for communications between the dunking transducers and the vehicle responder/transponder.
It can be used as a stand-alone system, powered by and communicating with the MicronNav through a spare RS232 port on the ROV (at 9600baud) or RS485 through a spare screened twisted pair in the umbilical. Alternatively it can be
integrated with the Tritech Micron/SeaSprite Sonar communicating via the sonar RS232 aux port.
The USBL transducer is designed to provide 180 degree hemispherical coverage below the transducer, allowing vehicle tracking in very shallow water. The design of the ROV MicronNav transducer provides omni-directional coverage.