The autonomous vehicle industry has spent a decade building camera-based lane detection. The results have been impressive in good conditions. In adverse conditions — fog, heavy rain, snow, glare — the results have been consistently dangerous.
The Physics of the Problem
Cameras detect light. In fog, rain, and snow, optical systems lose resolution rapidly. Lane markings painted on roads wash out, fade, and disappear entirely under snow. No camera-based system can reliably detect a lane that isn’t visually present.
Radar Solves the Physics
Radar penetrates fog, rain, and snow. Our trihedral corner cube reflectors are passive, maintenance-free infrastructure devices that return radar signals with exceptional precision regardless of weather or lighting. They don’t require painting, they don’t fade, and they are not affected by shadows or glare.
Infrastructure-Level Reliability
The key insight is that reliable autonomous highway operation requires infrastructure-level guidance — not vehicle-level perception. When the highway itself provides precise, all-weather lane markers, every equipped vehicle benefits regardless of its onboard sensor sophistication. This is the foundational principle of the HEART system. Read more about our technology stack or request a technical briefing.