Geomagnetic sensor introduction

Geomagnetic sensor-The geomagnetic sensor can be used to detect the presence of the vehicle and identify the vehicle type. Compared with the commonly used geomagnetic coil (also known as ground sensing coil) detector, this sensor that uses the influence of the vehicle on the road to the earth's magnetic field to complete vehicle detection has a small installation size, high sensitivity, small construction volume, and service life Long, small damage to the road surface (wired installation only needs to open a 5 mm wide slit on the road surface, wireless installation only needs to make a hole 55 mm in diameter and 150 mm deep in the road surface, not used when the hanger or side installation at the detection point Destroy the road) and other advantages will play a very important role in the information collection of the intelligent transportation system.