Marvelmind Indoor Navigation System is an off-the-shelf indoor navigation system designed to provide precise (±2cm) location data to autonomous robots, vehicles (AGV), and copters. It is also used to track other objects that the mobile beacon installed upon, for example, virtual reality (VR) systems, helmets for construction workers or miners, etc.
The navigation system is based on stationary ultrasonic beacons that are united by radio interface in a license-free band (433MHz or 915MHz). The location where a mobile beacon installed is calculated based on the propagation delay of an ultrasonic signal (Time-Of-Flight or TOF) to a set of stationary ultrasonic beacons using trilateration.
Key requirements for the proper system functionality:
Distance between beacons
Location update rate
Mobile beacon from Starter Set: