Method and System to Assess Abnormal Driving Behaviour of Vehicles Travelling on Road

摘要

The invention concerns a method for assessment of abnormal driving behaviour to improve driving safety of a vehicle travelling on a road, using position information and motion information about said vehicle and/or at least one neighbouring vehicle travelling in the proximity of said vehicle on said road. The method comprises a step of obtaining and memorizing (40, 42) a plurality of position information items and motion information items, each information item corresponding to a measuring time instant of an observation time interval and a step of obtaining (44) at least one estimate of the reference value for said vehicle and/or its at least one neighbouring vehicles travelling on said road during the observation time interval. Next, the sets of deviation values are computed (46), each deviation value being computed using a memorized information item corresponding to a measuring time instant and the at least one estimate of the reference value and the quantities of deviation are obtained from the corresponding sets of deviation values. If a quantity of deviation among said quantities of deviation is greater than a predetermined threshold for the corresponding driving behaviour, the method implements (52) a measure for safety improvement.

主权项

1. A method for assessment of abnormal driving behaviour of a vehicle travelling on a road, using position information and motion information about said vehicle, the method being characterized in that it comprises the following steps:
obtaining and memorizing a plurality of position information items and motion information items, each information item corresponding to a measuring time instant of an observation time interval, obtaining at least one estimate of a reference value for said vehicle travelling on said road during the observation time interval, calculating a set of deviation values, each deviation value being computed using a memorized information item corresponding to a measuring time instant and the at least one estimate of a reference value, obtaining a quantity of deviation from the set of deviation values to quantify a corresponding abnormal driving behaviour, repeating the above steps iteratively for monitoring the quantity of deviation for the corresponding abnormal driving behaviour, and deciding, based on said quantity of deviation, whether a predetermined threshold for the corresponding abnormal driving behaviour has been exceeded and in case of affirmative result, implementing a measure for safety improvement.