Method and system for determining a road condition
First Claim
1. A method for determining a condition of a road traversed by at least one vehicle, the method comprisingdetermining at least one calibration parameter of a part of the vehicle,continuously sensing a vertical acceleration of the vehicle,continuously sensing a horizontal acceleration of the vehicle,calculating a road condition value based on the vertical acceleration and on the calibration parameter,continuously monitoring whether the road condition value exceeds a predefined schedule, triggering a road maintenance event if the schedule is exceeded,continuously monitoring whether the horizontal acceleration exceeds a predetermined threshold value and occurs according to a predefined pattern, triggering an evasion event if the threshold value is exceeded and/or the predefined pattern occurs, the evasion event comprising an evasive movement of the vehicle,wherein, in the event of a triggered road maintenance event or evasion event, the method further comprises:
- determining or deriving a vehicle position at the time of the road maintenance event or evasion event, respectively, andproviding event data to at least one receiver, the event data comprising information about the vehicle position and either at least one road condition value or information about the evasive movement.
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Abstract
The invention pertains to a road condition determining system and a method for determining a condition of a road traversed by at least one vehicle. The road condition determining system comprises a vehicle position determination means for determining a position of the vehicle, a calibration parameter detection unit adapted to determine at least one calibration parameter of a part of the vehicle, a vertical acceleration sensor adapted to continuously sense a vertical acceleration of the vehicle, a calculation unit adapted to calculate a road condition value based on the vertical acceleration and on the calibration parameter, and to continuously monitor whether the road condition value exceeds a predefined schedule, and a data transmission unit adapted to provide maintenance data to at least one receiver, the maintenance data comprising at least an information about the vehicle position.
22 Citations
16 Claims
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1. A method for determining a condition of a road traversed by at least one vehicle, the method comprising
determining at least one calibration parameter of a part of the vehicle, continuously sensing a vertical acceleration of the vehicle, continuously sensing a horizontal acceleration of the vehicle, calculating a road condition value based on the vertical acceleration and on the calibration parameter, continuously monitoring whether the road condition value exceeds a predefined schedule, triggering a road maintenance event if the schedule is exceeded, continuously monitoring whether the horizontal acceleration exceeds a predetermined threshold value and occurs according to a predefined pattern, triggering an evasion event if the threshold value is exceeded and/or the predefined pattern occurs, the evasion event comprising an evasive movement of the vehicle, wherein, in the event of a triggered road maintenance event or evasion event, the method further comprises: -
determining or deriving a vehicle position at the time of the road maintenance event or evasion event, respectively, and providing event data to at least one receiver, the event data comprising information about the vehicle position and either at least one road condition value or information about the evasive movement. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A road condition determining system adapted to determine a condition of a road traversed by at least one vehicle, comprising
a vehicle position determination means for determining a position of the vehicle; -
a calibration parameter detection unit adapted to determine at least one calibration parameter of a part of the vehicle; a vertical acceleration sensor, adapted to continuously sense a vertical acceleration of the vehicle; a horizontal acceleration sensor adapted to continuously sense a horizontal acceleration of the vehicle; a calculation unit adapted to calculate a road condition value based on the vertical acceleration and on the calibration parameter, and to continuously monitor whether the road condition value exceeds a predefined schedule; an evasion detection unit adapted to continuously monitor the occurrence of an evasion event related to an evasive movement of the vehicle based on the horizontal acceleration, wherein the evasion detection unit is adapted to trigger an evasion event if the horizontal acceleration exceeds a predefined schedule and occurs according to a predefined pattern, and a data transmission unit adapted to provide maintenance data to at least one receiver in case of an evasion event and in case that the road condition value exceeds the predefined schedule, the maintenance data comprising at least an information about the vehicle position. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A non-transitory computer program product comprising program code which is stored on a machine-readable medium, or being embodied by an electromagnetic wave comprising a programme code segment, and having computer-executable instructions for performing, when executed on a computing unit of road condition determining system;
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calculating a road condition value based on the vertical acceleration and on the calibration parameter, continuously monitoring whether the road condition value exceeds a predefined schedule, triggering a road maintenance event if the schedule is exceeded, determining or deriving a vehicle position at the time of the road maintenance event, and providing event data to at least one receiver, the event data comprising information about the vehicle position and at least one road condition value.
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Specification