VEHICLE DETECTION SYSTEM

摘要

A vehicle detection system (1) comprising at least one detection unit (2). Each detection unit corresponds to a detection volume (S n ) and each detection unit comprises at least two spaced-apart magnetic field sensors including first and second magnetic field sensors (6a, 6b; Figure 3). Each magnetic field sensor is configured to provide a series of instantaneous magnetic field measurements spaced apart in time. A processing unit (3) is configured to receive the time series of instantaneous magnetic field measurements. The processing unit is configured to store the time series of instantaneous magnetic field measurements in a table (8; Figure 5). The processing unit is configured to determine the presence of a vehicle (7) in each detection volume in dependence upon the magnetic field measurements in the table.