The short range device SRD for indoor location
The TWIG Beacon system is designed to locate distressed or injured persons inside areas where GPS is not reliable and other methods do not provide needed accuracy.
TWIG personal alarm devices are located within a microcell network of RF transmitters, laid out to meet position accuracy requirements. Set in place, TWIG Beacon with a large-capacity battery, provides years of operating time.
Over-the-air configuration facility makes setting up the system easy. IP67 water-proof housing allows installation in demanding environments.
TWIG personal alarm devices report to alarm receiving centre (ARC) TWIG Beacon location information along with last known GPS position, creating a complementary location system for indoor premises capable of global roaming outdoors.