| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle detector for detecting a vehicle while distinguishing lanes. SOLUTION: In the vehicle detector 4 for detecting a vehicle 4 passing on a road 10 from a change in magnetism caused by that vehicle 4, at least two magnetic sensors are installed while having a sensitivity axis in one direction, the sensitivity axis of one magnetic sensor 12a is turned in a direction vertical to the surface of the road, and the sensitivity axis of the other magnetic sensor 12b is turned in the width direction of the road. Since the state of changing magnetism is made different by the position relation of vehicles and magnetic sensors, the lane can be distinguished. |
