Thread Tools Search this Thread
Old 01 March 2010, 11:43   #1
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,620
Experimental Autonomous Navigation RIB

Last weekend (actually, Monday 2-22), ran into a couple of guys from the Naval Postgraduate School in Monterey, CA. They pulled up in a truck with a strange-looking RIB in tow. After launching, the truck disappeared to show up a bit later with a more conventional-looking RIB.

After a bit of chatting, it turned out that they were experimenting with an Autonomous Navigation system, using a custom designed Northwind RIB as a testbed (Northwind is a Seattle-based builder.) The chase RIB was also a Northwind boat.

So, the info I got was: a custom computer interprets GPS (and I think, radar) info, and controls throttle and steering. Forward looking sonar on both sides aids in avoiding underwater obstacles (the outriggers visible in the side-plan pics.) The chase boat has a radio controlled system override and remote control unit. A small hatch revealed a seat, wheel and throttle for ferrying to and from test sites (on that day, they were operating about a half mile outside the harbor, using a couple of existing buoys as nav points. I happened to be diving about 200 yds from where they decided to base the chase boat.)

Power for the testbed was a small diesel driving a Mercury jet unit. I can say one thing: the thing was loud. I could plainly hear the throttle changing from a quarter mile.

I have no idea what they were testing, but in the 20 minutes or so that I watched, the testbed would take off, sort of wander back and forth across a track heading roughly for the second buoy, with occasional circles at the outside turns. Eventually it made it pretty close to the second buoy, then the chase boat moved to close on it, and everything started over going the other way. Occasionally, the chase boat would move to intercept fishermen who decided to buzz the testbed on their way out.

Anyway, I thought it was sort of interesting...

Attached Thumbnails
Click image for larger version

Name:	IMG_0565.jpg
Views:	174
Size:	114.7 KB
ID:	49494   Click image for larger version

Name:	IMG_0566.jpg
Views:	164
Size:	133.6 KB
ID:	49495   Click image for larger version

Name:	IMG_0563.jpg
Views:	142
Size:	88.0 KB
ID:	49496   Click image for larger version

Name:	IMG_0560.jpg
Views:	167
Size:	116.4 KB
ID:	49497  
jyasaki is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 08:49.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.