Patent ID: 9147346
Filing Date: 2015-09-29
Classification: G01R,G01S,G01V,G08G

Abstract:
1. A method for detecting a particular state of a specific parking space among a plurality of parking spaces, the particular state of the specific parking space being one of empty or occupied, each parking space being equipped with at least one detector for measuring a value of at least one parameter, said value being a magnetic field value, the at least one parameter being variable according to a presence or absence of a vehicle in the respective parking space, the method comprising steps of: measuring, during a first time interval, a first value of the magnetic field with the at least one detector associated with the specific parking space; measuring, during said first time interval, a second value of the magnetic field with the at least one detector associated with at least one parking space close to the specific parking space, wherein the at least one parking space is considered close to the specific parking space if a presence or absence of a vehicle in the close parking space influences the first value of the magnetic field in a non-negligible way; transmitting at least the first and second magnetic field values to a processing unit of a management center; comparing, by the processing unit of the management center, the first magnetic field value with a stored reference value corresponding to a known state of the specific parking space; comparing at least the second magnetic field value with the first magnetic field value; and determining whether the specific parking space has an occupied or empty state, based on the result of both of said comparison steps.