In order to solve the problems of large ownership of vehicles,scarce parking spaces,and difficulty in parking for residents in the cities,geomagnetic measurements based parking space detection and management is a hot topic of current research.The disturbance on the geomagnetic field by the vehicles and the characteristics of geomagnetic changes are the basis and key issues to resolve the problem.In this article,magneto-resistive sensors are used to fully test the distribution and changes of the bottom of different model of vehicles and the thre...
