MIT researchers have improved the navigation and ability to detect small mines on the hulls of ships for its Autonomous Underwater Hull Inspection Vehicle, pictured here. Small mines can create significant damage to a ship's hull even if they don't threaten the lives of people onboard. (Source: The Office of Naval Research)
Maybe I'm being too literal, but the HAUVs in our nautical robot slideshow http://www.designnews.com/author.asp?section_id=1386&doc_id=246206 are by definition autonomous vehicles (the "A" in HAUV), which means they don 't require human interaction. So I still don't get why the Navy wants to reinvent their own version (and, of course, call it by a different name). Unless it's to have their own algorithm?
Your quite welcome. There's a group of students at ITT Tech buidling a mobile robot using a metal detector kit to locate metal objects for their Capstone Project. Sounds interesting and I look forward to their finish product and results.
Possibly adding an inductive sensing coil similar to a proximity sensor or a metal detector could possibly be used with crab seeking underwater robots to detect the mines. Sounds like a good Capstone project for an undergraduate engineeering team to research and implement.
You make a good point. Some years back we were looking at some sensitivity of mines to metalic objects and some navigation devices to direct divers to mines. The biggest problem was the fact that many mines sence approaching metal as a threat or a target and detonate, so we needed to find one that has a very small or no metal signature. I do not know haw these robots can approach a magnetic mine.
Robotics have been used in space exploration, wood manufacturing, and composites defect inspection applications to alleviate endangerment to humans. Why not the last frontier, oceans. Since crabs scour the ocean floors looking for food, making robot replicas to find mines make perfect since.
That makes sense. Thanks for the explanation. I guess I have a hard time "getting" the thought-process of deviant activity. My mind tends to direct thoughts toward constructive, vs. destructive activities. Guess I'd make a poor CIA counter-terrorist!
@JimT-The Navy's not concerned with previously sunken ships--they worry about currently deployed assets at anchor. Consider Fleet Week in Ft. Lauderdale, FL. A carrier group comes in fairly close to shore. A terrorist with rebreather equipment (no bubbles) could deploy a small limpet mine amongst the propellor/rudder structure. These autonomous robots hopefully can detect this if all other security measures have failed. I imagine that the detection algorithm in typically limited visibility and complex structure is what took 10 years to develop and test.
What makes this movie stand out from the typical high school sports story is that the teenagers are undocumented immigrants, and the big game is a NASA-sponsored marine robotics competition. Like many other Hollywood movies, however, Spare Parts only tells part of the story. What the film shows -- and doesn’t show -- raises important issues affecting STEM education in the US.
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Load dump occurs when a discharged battery is disconnected while the alternator is generating current and other loads remain on the alternator circuit. If left alone, the electrical spikes and transients will be transmitted along the power line, leading to malfunctions in individual electronics/sensors or permanent damage to the vehicle’s electronic system. Bottom line: An uncontrolled load dump threatens the overall safety and reliability of the vehicle.
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