Research on Vehicle Speed Detection Based on Eddy-Current Sensor

Vehicle speeding is one of the most important factors causing the traffic accidents.This article has taken one lane as example.Two eddy-current sensors are buried on the road in some distance.When the car goes over the eddy-current sensor,a pulse signal is produced.This signal is calculated to gain the car's speed by the single-chip microcomputer.The experiment shows that this method can detect and record speeding cars on various sections of roads effectively.At last,drivers are willing to obey traffic laws and rules and to achieve the goal of reducing the incidence of traffic accidents and improving our safety's possibility and keeping cars passing fluently.