Realtime Satellite Gateway Buoy with Inductive Data Link

DesignThe new MI.Sat II buoy is based on a design already proven in various deployments near the Cape Verde Islands and in the Irminger Sea south of Greenland.

The buoy is suitable for deep water moorings with mooring lengths of 6,000m and more. As the unit is designed to withstand external pressure up to 50bar, temporary submerging during deployment or heavy weather is not a problem.

The corrosion proof titanium system housing hosts a refillable battery container with up to 3,000 Wh energy capacity supported by solar power, an inductive modem module for communication with mooring mounted sensors as well as the system electronics.

The upper antenna dome contains an IRIDIUM satellite transponder, a GPS receiver, antennas and a small navigation light. A meteorological sensor package (precise air pressure & temperature; sensors rated to an over pressure of 50bar) is optionally available.

The flotation collar is manufactured from syntactic foam. A large lifting eye simplifies deployment and recovery.

FeaturesThe integrated Port.8 low power data logger and system controller is responsible for managing sensor data polling, data filtering and reduction, data storage (on SDHC card) and forwarding via satellite as well as monitoring of the buoys position.

The systems energy capacity is sufficient to e.g. hourly poll data from a set of mooring mounted sensors (up to 98 are possible) with inductive interface, store the data and forward data via the satellite interface every 6 hours for over two years.

Acoustic communication capabilities with e.g. seafloor landers is possible via the optional HAM.Base hydro acoustic modem.

The special mooring setup with a large bending restrictor, distributed surface flotation along the first part of the mooring is designed to withstand even rough conditions for extended deployment periods.

The Mi.Sat system is designed to be plug and play compatible with our Mi.Sens multiparameter sensors but also fully supports all devices compatible with Sea-BirdTM inductive communication.

We also offer deployment-ready packages with moorings configured to specification.

Product Specification

MI.Sat II

www.develogic.de

MI.Sat II buoy on mooring with 2 Mi.Sens multiparameter sensors.

MI.Sat II buoy before deplyoment

MISat SpecificationLength: 1,270mm Diameter: 420mm x 495mmWeight: ~54kg (excluding batteries)Submergeable to 500mEnergy: up to 3000Wh, solar panel supported GPS, IRIDIUM and navigation light Typical service interval: >12months up to 36 monthsOptional hydroacoustic communication packageOptional met. sensor package

Realtime Satellite Gateway Buoy with Inductive Data Link

MI.Sat II buoy with inductive mooring

2016-07