Indoor Drone Positioning: 80 Hz, 12-20 ms | Marvelmind

ⓘ Indoor Drone Positioning Technology

Fast motion is where positioning systems show their lag: with ultrasound alone, at about 8 Hz, the position would arrive in steps and fall behind a fast swing. This demo shows the opposite. The real-time output of Marvelmind ultrasound + IMU sensor fusion in the Non-Inverse Architecture (NIA) stays with the beacon through quick swings, and repeated arcs land on top of each other, which shows the tracking is stable, not only fast. Rotating the view confirms the arcs are consistent in 3D. The fast blue dots are the real-time IMU sensor fusion output: 80 Hz updates with 12-20 ms latency. The golden dots that follow are the post-processed track, the most verified layer, which arrives a little later. Low latency and tolerance to acoustic noise are the two key benefits for autonomous indoor drones, where propellers are loud and the flight controller needs the current position, not one from a fraction of a second ago. For indoor drones this is the point: a PixHawk drone takes the fused position directly from the mobile beacon, and a DJI drone, whose flight logic runs outside the drone, receives it on the modem side through the RHU. Configuration: 3 Super-Beacons as stationary beacons, 1 Super-Beacon-4 as the mobile beacon, 1 Modem HW v5.1 as the modem and 1 Modem HW v5.1 as the RHU. The feature is enabled by the MMSW0021 license.