20120062393 | METHOD AND SYSTEM FOR DETERMINING THE OCCUPATION STATE OF A PARKING SPACE - A method for determining the occupation state of a parking space, including the steps of: providing a first detection unit equipped with a frequency modulated continuous wave radar; preparing a decision unit and a second detection unit; transmitting via the radar a communication signal modulated on the basis of a first code, alternatively indicating the parking space or a vehicle; receiving the communication signal with the second detection unit; demodulating the first code with the second detection unit; transmitting the first code to the decision unit via the second detection unit; and determining, with the decision unit, the occupation state on the basis of the first code and the second code, alternatively indicating either a vehicle or the parking space. | 03-15-2012 |