Detection of road or rail vehicles for traffic monitoring

摘要

For the detection of road vehicles or trains (1, 1.1) magnetoresistant sensors (2, 2a, 2b) built into the roadway or rail track (3, 4) are more durable and have a lower installation cost than induction loops. The movement of the vehicle (1, 1.1) in the area of the sensor causes charges to the magnetic field, leading to a signal picked up at the monitor (5). On roads, a sensor system using two sensors (2a, 2b) in each lane (3a, 3b), c3) is recommended. The two sensors should be close to and in the line with one another in the direction of vehicle movement and be linked by a connection lead (7a). The second sensors in each lane are connected by the lead (7) which conveys the signal to the monitor (5). aDVANTAGE - Durable and cheap to install.