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After years and years of admiring and learning from these speakers, it's wild to see my talk on TED.com. More importantly, I'm thrilled that TED let me write a short essay about the changing nature of exploration, and highlight some of the incredible people in our community.
My only critique: I wish they would have titled it "Our underwater robot" because that's what makes it special.
It was fun to interview a few people to see why and where they are exploring. I wish I could do that with everyone. I'd love to hear your thoughts in…Continue
What's SBL, LBL, etc?? I made these images a few years back in google Sketchup to help. There is a nice wiki page written by Marco Flagg who has been building these systems a while available here: http://en.wikipedia.org/wiki/Underwater_acoustic_positioning_system but here are the main exerpts. These systems use small ceramic elements to send clicks between each station.
<***Begin wikipedia quote from Marco***
Long-baseline (LBL) systems, as in figure 1 above, use a sea-floor baseline transponder network. The transponders are typically mounted in the corners of the operations site. LBL systems yield very high accuracy of generally better than 1 m and sometimes as good as 0.01m along with very robust…Continue
Posted by Matthew Valancy on December 4, 2013 at 12:30pm
There might be a spot for this already but I wanted to write a quick note sharing my experience getting the IMU to work. When trying to get mine to work I didn't find a solution quickly so maybe this will help!
1) Put latest image on https://github.com/OpenROV/openrov-software/releases/tag/v2.5.0-Beta I believe...
2) ssh into device (rov/OpenROV)
3) change/opt/openrov/arduino/OpenROV/Adevice.h config
rov@OpenROV:/$ sudo vi /opt/openrov/arduino/OpenROV/AConfig.h
enter OpenROV password again
change the following ("i" for edit mode!)
#define HAS_POLOLU_MINIMUV (0)
#define HAS_MS5803_14BA (0)
#define MS5803_14BA_I2C_ADDRESS 0x76
#define HAS_MPU9150 (0)
Disclaimer: These designs are simple prototypes and in no way reflect accurate and functional models. They are supplied as sketches only. The hydrophone DIY sourced from DOSITS as an example. The ROV images are from user dezbot on thingiverse of an earlier version of the OpenROV kit. Sketchup Make was used for CAD rendering.
Hydrophone design is varied. The above image depicts 3 mount and enclosure designs based off of the DOSITS DIY hydrophone, found here. This design, with the simple mounting configurations, will be the used as prototypes for hydrophone use, system design, and data…Continue