01 · CALIBRATE
Four points, real geometry
A through D define a spatial road rectangle. LiDAR provides length, width and metric scale.
LiDAR · COMPUTER VISION · ON DEVICE
See traffic. Understand speed.
Vmax check combines LiDAR calibration with local vehicle detection on iPhone. A visible part of the route is enough for a transparent speed estimate.
On deviceNo measurement backend
LiDARMetric route
A–DGuided calibration
iPhone ProiOS 18 or later
THE APP
One field.
Multiple visible points.
No rigid light gate: Vmax check uses all plausible vehicle positions within the visible part of the calibrated road section.
02 · ALIGN
Return to the viewpoint
Four steady corner indicators help align the camera as closely as possible with the saved observation point.
03 · MEASURE
Partial route, not hard gates
Vehicle positions are fitted robustly. Brief occlusion by trees does not have to end a measurement.
LOG
Inspect every result
Speed, direction, partial distance, image points, inliers and the best vehicle image remain available locally.
PRIVATE
Local instead of cloud
Camera, LiDAR and location data are not sent to a measurement backend for core functionality.
MOBILE
No fixed mount
The workflow is designed for a handheld compatible iPhone Pro in portrait orientation.
THREE STEPS
From road to measurement field.
Create a route profile
Save its name and local speed limit.
Capture the observation point
Save the future camera position with the road and distinctive surroundings.
Measure route A–D
Walk from A to B on the right, cross only when safe, then return from C to D on the left. The profile can then be reused.
Vmax check is not calibrated or approved for official or legally binding speed measurements. Never configure or operate the app while standing in moving traffic.
TESTFLIGHT · IOS
Try Vmax check in the field.
The app is still being field-tested. Feedback from real traffic situations helps improve it.