Honeywell has produced a high-quality inertial/GNSS unit for everyday automotive use.
The US company has introduced the ‘Guide n580’ single 9 x 6 x 6cm box unit for a broad range of uses, including agriculture, robotics and autonomous vehicles, claiming that it will yield precise navigation in GNSS-denied areas such as tall cities, tunnels and multi-layer roads, as well as during GNSS outages.
A company spokesman explains: ‘The blend of inertial and satellite navigation capabilities provided by the HGuide n580 is especially important where precision is required in demanding environments - for example, autonomous cars traveling in cities, where our technology can extend the accuracy and performance of navigational systems while keeping passengers safe.’
GNSS signals used include all civil signals transmitted by GPS, GLONASS, BeiDou, Galileo and India’s IRNSS. Augmentation used can include SBAS, post-processed or real-time kinematic (PPK/RTK) modes. It can use single or dual antennas.
Claimed accuracies (95%) with GNSS available include 1.2m in both H & V using SBAS, with heading to 0.1º and pitch/roll to 0.03º. Further errors (RMS) introduced with GNSS denied are claimed after 30 seconds to be H 1m, V 0.5m and heading 0.08º.