Dolphin 6201 OAS
Dolphin Model 6201 Obstacle Avoidance Sonar has been specifically engineered for A.U.V. and R.O.V. pilotage and navigation. The compact stainless steel "nose-cone" housing is rated at 3000m operating depth and incorporates a dual beamwidth transmitter and a forward looking (33) echo-sounder as well as the main 60 element phased receiver array.
The beam-forming electronics are mounted directly on the rear of the transducer array in the underwater housing for optimum image definition. The scanning unit is controlled by a small PC104 based computer that may be mounted remotely from the underwater unit. Outputs from the PC104 computer provide navigational directions via RS232 based on multiple targets tracked and analysed by the system. An Ethernet link from the PC104 provides an imaging output for operator viewing on cable linked R.O.V.'s or image storage on A.U.V.'s.
The Imaging software runs under "Windows" and produces displays as shown on the right. The P.C. requirements are met by a notebook as the data input is via Ethernet. The A.U.V. software which runs on the PC104 card provides RS232 navigational messages to avoid targets detected by the sonar without operator intervention.
Features Include
- Real Time continuous scanning over 90 sector
- Switchable beamwidth acoustic transmitter
- RS232 navigational data output for pilotage
- Raw data logging
- Ethernet image output
- Rugged compact underwater unit
- 3000m depth rating
- Echosounder built in
- 200m acoustic range
- Track up to 250 targets
|
Examples of the Dolphin 6201 OAS sector display in operation.
The Navigational Simulator showing the vehicles track in green, targets in red and avoiding action taken shown in blue..
Examples of target recognition from the Dolphin 6201 OAS.
|
