Jun 19, 2007 GPS World Hemisphere GPS today introduced its Crescent V100 and V110 GPS compasses, which the company says provides alternatives to traditional gyro compasses for marine navigation. The Crescent V100 Series boasts a rugged and maintenance-free smart antenna design, the company says. It combines Hemisphere GPS' Crescent Vector board and two multipath-resistant antennas, all housed in a half-meter length enclosure. The compasses provide better than 0.3 degrees heading accuracy and includes SBAS (WAAS, EGNOS, etc.) differential capable of providing better than 60cm positioning accuracy, according to Hemisphere. The Crescent V110 incorporates a beacon differential option, while both models feature integrated gyro and tilt sensors, which deliver faster startup times, smoothed heading output and continuous heading updates for up to three minutes during temporary loss of GPS signals, according to the company. The units also contain Hemisphere's Coast technology, which maintains sub-meter positioning during temporary loss of the differential signal, the company says. Hemisphere GPS, formerly CSI Wireless, apparently has its eyes on the market for traditional marine compasses. "The fluxgate and gyro compass market is sizable, with over 30,000 units sold annually, or about $60 million in sales," stated Steven Koles, Hemisphere president and CEO. "GPS compasses are being implemented in naval applications in greater rates, as integrated bridges with central consoles require accurate and reliable heading inputs for navigation and autopilots.”
Interesting GPS compass and tilt sensor
- Thread starter patrick
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I still want
A traditional compass, visible from the helm. When all else fails, when the power goes out and everything goes dark, I can still know what direction I'm going. I do use the compass on the GPS some, but depend on that old standbye most of the time, once a course is set. I know I am more dependant on electronics than many on this board, but I am not going to go that far.
A traditional compass, visible from the helm. When all else fails, when the power goes out and everything goes dark, I can still know what direction I'm going. I do use the compass on the GPS some, but depend on that old standbye most of the time, once a course is set. I know I am more dependant on electronics than many on this board, but I am not going to go that far.
A gyro compass is not very traditional
my primary is a good old fashioned magnetic compass that is subject to all manner of errors but not to power failure. All other compasses are also subject to error , just not the same errors.
my primary is a good old fashioned magnetic compass that is subject to all manner of errors but not to power failure. All other compasses are also subject to error , just not the same errors.
All instrumentation is subject to errors
I just thought this is an interesting GPS application that most people haven't thought of. Three separate antennas would give complete attitude data. I would like to know how much the boat heels or rocks just because I am curious. For one thing, one could see the actual heading of the boat and see the actual course, too. With a digital signal that this thing would put out, it could be logged on the computer for later analysis. There may be even more useful applications of this technology such as faster, different and more certain input to the autopilot. I do also agree about battery failure and I am not removing my magnetic compass any time soon.
I just thought this is an interesting GPS application that most people haven't thought of. Three separate antennas would give complete attitude data. I would like to know how much the boat heels or rocks just because I am curious. For one thing, one could see the actual heading of the boat and see the actual course, too. With a digital signal that this thing would put out, it could be logged on the computer for later analysis. There may be even more useful applications of this technology such as faster, different and more certain input to the autopilot. I do also agree about battery failure and I am not removing my magnetic compass any time soon.
The greatest degree of error
is human error. It affects all things new and old, powered and non-powered, simple or advanced. Never use anyone technology with it is cart and compass or gps. You might screw up on one but you have to really be trying to screw up everything! Have Fun!
is human error. It affects all things new and old, powered and non-powered, simple or advanced. Never use anyone technology with it is cart and compass or gps. You might screw up on one but you have to really be trying to screw up everything! Have Fun!
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