Drone or bird?
A simulation of how Parallax, our drone detection system, decides what is in the sky.
What's happening
A small drone is approaching from the north-east. Now the microphones hear rotors too. Two kinds of evidence agree: it's a drone, and nothing explains it.
Drag on the map to draw the drone's route.
Unknown drone
B3697
Seen and heard, and nothing explains it.
Everything here runs in your browser: a seeded simulation, not live data. The reasoning rules are Parallax's; the sky, the sensors and their numbers are simulated.
Four rules it runs on
- 01
Evidence, not verdicts
Each sensor reports a bearing, how sure it is of it, and what it thinks it saw. The conclusion is drawn only in fusion.
- 02
Two witnesses, not ten
Ten cameras are one witness; sight and sound are two. A verdict passes 0.9 only when a second domain agrees.
- 03
Position is geometry
Bearings from three masts, 113, 118 and 205 m apart, cross to give a fix. It is published only when the error ellipse is under 0.8 × the nearest range.
- 04
Alert on what is left
ADS-B clears aircraft and Remote ID clears registered drones, each checked against the cameras and microphones. The alert goes to what nothing explains.
This is how Parallax reasons.
The real system runs these rules on 20 sensors across three masts, and a digital twin scores every verdict against ground truth.