一种利用磁场探测来计算车流量的方法

车辆是长期处于地磁场环境下被磁化而带有磁性的铁磁性物质较多的物体，它们即使经过消磁处理，但本身还有一定的剩磁。磁阻传感器具有很高的分辨率。当汽车通过传感器时，传感器会纪录下磁场的变化量。设计了一套电路来实现车辆磁场的探测，进而可以进行车流量统计，具有一定的实用性。

A Way of Vehicle Discharge Statistic with Magnetic Detecting

The vehicle is an object that magnetized for taking of the iron magnetism material in an environment of magnetism over a long time.Even it is processed by magnetism eliminating,it still certainly keeps some remaining magnetism.The magnetic sensor has very high resolution.When the automobile passes,the sensor will record the variety quantity of the magnetic field.This paper designs a set of electric circuit to identify the vehicle,carries on the vehicle discharge's statistics,and has certain practicability.