Method for Detecting a Wheel of a vehicle to emit a Beam of electromagnetic Measurement of known Frequency has a progression in time from a Detection Unit, and in the time Frequency Measuring Beam that is reflected in the related Detection Unit C On The Progression of known Frequency in time as a received signal.Type prederterminado and detect a change in the Received Signal as a Wheel.

摘要

The method involves recording frequencies of measuring beam (6) over time relative to known frequency progression over time as received signal. The change of predetermined kind in received signal is used for detecting wheel (1) of vehicle (2). The duration of passage of vehicle passing the detector unit (5') is computed based on length information of vehicle read from onboard unit (15) and speed of vehicle. The time window in received signal is determined and compensated by spurious signal component before detection of wheel is completed.