Hot Start

Advanced Navigation devices were the first on the market with hot-start functionality. This hot-start functionality allows Boreas to start inertial navigation within 500 ms to 2s , and obtain a GNSS fix in as little as 2 seconds, The hot-start functionality is always on and fully automatic. See Navigation Specifications for details.

A next generation backup battery system within Boreas provides the hot-start ability for more than 48 hours without power. When Boreas hot-starts, it assumes that it is in the same state it was when it lost power and begins navigating from that position. The hot-start also provides ephemeris, almanac and time information to the GNSS receiver which allows it to achieve a GNSS fix far more quickly than it otherwise could. When the GNSS achieves its first fix, Boreas will jump to the new position without disturbing the filter.

Whenever Boreas is without power it continues to accurately keep time so that it is immediately valid for a hot-start.

The hot-start functionality is of particular benefit to vehicle tracking and robotics applications. The primary benefits are immunity and fast recovery from power failure as well as fast start up time.