Method and system for automatically detecting and checking the use of parking places (P) of a parking arrangement (1), which is provided with a parking network (20-28) and a central computer (29), the parking places (P) being each provided with an electronic parking sensor module (S 1 - S m ), which has an identification code and a vehicle sensor for detecting a vehicle in the respective parking place (P), wherein use is made of electronic license devices (30), which are carried along with vehicles which can be parked in the parking places (P), the license devices each having a unique identification number and motion sensor means (33), which together with time measuring means (35) can determine at what time (t 1 ) exactly a vehicle comes to a standstill, and wherein transmitting means (36, 37) are provided to transmit information about said time together with the identification number to the central computer (29), and wherein the central computer (29) can compare said time (t 1 ) with times at which the parking places (P) become occupied, to determine on the basis of that comparison in which parking place the vehicle is parked.