Distance measuring method for use in driver assistance system, involves measuring time until measuring vehicle passes object, and calculating distance from measuring vehicle to neighbouring vehicle on basis of measured time

摘要

#CMT# #/CMT# The method involves identifying a stationary object adjacent to a neighbouring vehicle (1) at a specific time and measuring the time until a measuring vehicle passes the object. Distance from the measuring vehicle to the neighbouring vehicle is calculated on the basis of the measured time. The calculated distance is combined with the size of formation of a characteristic in an image of the neighbouring vehicle. #CMT#USE : #/CMT# Used in a driver assistance system for measuring distance from a measuring vehicle to a neighbouring vehicle. #CMT#ADVANTAGE : #/CMT# The method measures the distance from the measuring vehicle to the neighbouring vehicle without stressing the attention of the driver. The method enables range finding by using only one camera, without being dependent on the identifiableness of given characteristics of the neighbouring vehicles and the high profile of the dimensions of the characteristics. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows an image of an ahead-driving vehicle displayed by a camera during execution of a method for measuring distance from a measuring vehicle to a neighbouring vehicle. 1 : Neighbouring vehicle 2 : Roadway 3 : Center strip 4 : Road delimitation stakes 5 : Drop shadow.