PARKING ARRANGEMENT WITH AN AUTOMATIC VEHICLE DETECTION SYSTEM, AND METHOD FOR PUTTING INTO OPERATION AND MANAGING A PARKING ARRANGEMENT
First Claim
1. A parking arrangement with parking places for vehicles and with an automatic vehicle detection system which comprises a central computer system and at each of at least a number of parking places at least one wirelessly operating parking sensor module for determining the presence or absence of a vehicle in the respective parking place, which parking sensor module comprises at least one vehicle sensor, which in operation provides measuring values which are representative of the presence or absence of a vehicle, characterized by calibration means for determining the quiescent value, representing the absence of a vehicle, of the measuring values of the at least one vehicle sensor, which calibration means are configured, by a self-organizing map method, to divide the measuring values provided by a vehicle sensor into clusters of mutually close values, wherein the cluster having the largest number of measuring values is selected as representative of the quiescent value of the measuring values at the respective parking place, and wherein after each new measuring value which is added to the largest cluster an adjusted quiescent value is determined, and wherein a measuring value which differs from the quiescent value by more than a predetermined threshold value indicates that a vehicle is situated in the parking place.
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Accused Products
Abstract
A parking arrangement with parking places for vehicles and with an automatic vehicle detection system which comprises a central computer system and a wirelessly operating parking sensor module for determining the presence or absence of a vehicle in the parking place, which parking sensor module comprises at least one vehicle sensor, which provides measuring values which are representative of the presence or absence of a vehicle, provided with calibration means for determining the quiescent value, representing the absence of a vehicle, of the measuring values from the vehicle sensor, which calibration means by a self-organizing map method divide the measuring values into clusters of mutually close values, wherein the cluster having the largest number of measuring values is selected as representative of the quiescent value of the measuring values at a parking place, wherein each time an adjusted quiescent value is determined, and wherein a measuring value which differs from the quiescent value by more than a predetermined threshold value indicates that a vehicle is situated in the parking place.
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Citations
17 Claims
- 1. A parking arrangement with parking places for vehicles and with an automatic vehicle detection system which comprises a central computer system and at each of at least a number of parking places at least one wirelessly operating parking sensor module for determining the presence or absence of a vehicle in the respective parking place, which parking sensor module comprises at least one vehicle sensor, which in operation provides measuring values which are representative of the presence or absence of a vehicle, characterized by calibration means for determining the quiescent value, representing the absence of a vehicle, of the measuring values of the at least one vehicle sensor, which calibration means are configured, by a self-organizing map method, to divide the measuring values provided by a vehicle sensor into clusters of mutually close values, wherein the cluster having the largest number of measuring values is selected as representative of the quiescent value of the measuring values at the respective parking place, and wherein after each new measuring value which is added to the largest cluster an adjusted quiescent value is determined, and wherein a measuring value which differs from the quiescent value by more than a predetermined threshold value indicates that a vehicle is situated in the parking place.
- 12. A method for putting into operation and managing a parking arrangement with parking places for vehicles and with an automatic vehicle detection system which comprises a central computer system and at each of at least a number of the parking places at least one wirelessly operating parking sensor module for determining the presence or absence of a vehicle in the respective parking place, which parking sensor module comprises at least one vehicle sensor, which in operation provides measuring values which are representative of the presence or absence of a vehicle in the parking place, characterized in that for determining the quiescent value of the measuring values, representing the absence of a vehicle, in operation varying in time at each parking place, a calibration method is used, wherein by a self organizing map method individually for at least a number of the parking places the measuring values coming from the vehicle sensors associated with the respective parking places are divided into clusters of mutually close values, wherein from the cluster having the largest number of measuring values the quiescent value of the measuring values at the respective parking place is determined and wherein after each new measuring value which is added to the largest cluster an adjusted quiescent value is determined, wherein a measuring value which differs from the quiescent value by more than a predetermined threshold indicates that a vehicle is situated in the parking place.
Specification