Device to control passage of vehicles for multi-storey car park, has sensor unit to emit two spaced light beams and evaluation unit to detect cars from profile of beam meeting points

摘要

The device has a sensor unit (6) to monitor a driveway (3), which has a beam transmitter and detector to detect vehicles (4,5). The sensor unit has at least one transmitter to emit a rotating laser beam, which generates two spaced light beams in the driving direction. The sensor unit also has an evaluation unit, which emits data of the profile of the meeting point of the two beams and assigns objects to different groups of meeting points.