Technical
Once attached to an underwater vehicle or carried underwater by a diver, the TRACKER provides accurate real time position updates to the surface. Initiated by GPS and continued with Doppler bottom tracking, the TRACKER navigation is fully independent from any kind of external references
Main Specifications:
Precision of navigation: ±1%
Depth rating: 300 m
Weight in water: neutral
Link: Download full datasheet
Other applications
ROV operations in shallow waters
Boosting small ROV capabilities
Divers' navigation
Underwater mapping
Military applications
Underwater Data Collection
Contacts


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THE PROBLEM:
Trying to navigate a ROV in shallow waters or within the pylons of a pier or an oil platform has always been an expensive issue leading to poor results.
Indeed, normally used acoustic positioning systems (such as USBL) are subject to the following limitations:

In shallow waters or in presence of nearby underwater constructions, acoustic interrogations and transponder's responses bounce on the sea bottom and on obstacles. The result is a very poor position accuracy.

Such navigation systems require a properly equipped support vessel, expensive and sometimes not even operable in certain environments.
THE TRACKER SOLUTION:
1.The TRACKER ensures the same good position accuracy down to water depths of 25 centimeters (less than a foot) or around any underwater construction.

2. The TRACKER equipped ROV can easily be operated from any non-dedicated boat or even from a pier.
The TRACKER automatically transmits its position information through the umbilical cable of the ROV: the operator receives them directly on his laptop computer.

3. If a USBL system is however available on the support vessel, the TRACKER corrects USBL errors and displays an always accurate track of the ROV.
The TRACKER computer can easily be connected with the shipboard USBL: the result is an always accurate solid track, unaffected by USBL short term errors.
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Studio Ing. Banfi SAS Viale Giulio Cesare 118/B - 00192 Roma, ITALY - Tel. (+39) 349.53.35.920 - Tel./fax. (+39) 06.37.22.929 mauriziobanfi@tiscali.it