Velocity

2014

NovAtel's Annual Journal of GNSS Technology Solutions and Innovation

Issue link: http://velocitymagazine.epubxp.com/i/380251

Contents of this Issue

Navigation

Page 34 of 51

Kerkyra 2014 For more Solutions visit http://www.novatel.com velocity 35 millions of dollars to optimize their boats and crews." He adds, "It's important for com- panies to encourage people to try things like this. It's not really a failure if you go looking for something and you don't find it. It's all learning. We had some ideas but, in general, we said, 'let's go out and study this motion and capture it.'" Even though Mother Nature changed the race dynamics, they learned a lot about each other during the process, and worked as a true team as they debated how to fill those sails, fix broken equipment, and solve various challenges that came up along the way. The team element is one of Thistle's favorite as- pects of sailing, and he loves the interaction and ideas that come into play as they face each challenge. Aside from all the technology, how did they do in the race? "We had a great time," Thistle says with a smile. "We didn't really keep track of who won. But if there was a prize for best instruments or biggest fish…" The next Van Isle 360 is slated for June 2015, and Thistle hasn't ruled out the idea of enter- ing it. He tries to enter one race a year, and the thought of tackling those high winds and rough seas may lure him back yet again. FigURe 2: Sailing yachts experience motion in all linear directions and rotational axes. The plot above shows heeling (roll–top inset schematic) and pitch angle (lower inset schematic) logged in some of the more extreme sailing conditions during a night passage off the coast of Vancouver Island. The crew who were trying to sleep below deck agree that the data looks about right. FigURe 3: Are we there yet? Long hours of light wind and still water in last year's race presented a challenge for the crew and for the IMUs. The plot above shows the detail captured by the LCI IMU on a very calm day. GNSS and sailing GNSS has been a boon to recreational sailors, providing a reliable navigation solution for route planning and avoiding natural hazards. GNSS and IMU technology can be used for much more than basic position and velocity measurements, including: Dual-antenna systems for GNSS heading measurements to replace magnetic systems AIS receivers and transmitters for collision avoidance Accelerometer-based heel angle measurements, which are also used for correcting wind instrument readings Multi-frequency and multi-constellation systems for better availability and interference immunity.

Articles in this issue

Links on this page

view archives of Velocity - 2014