METHOD AND SURROUNDINGS DETECTION DEVICE FOR DETERMINING THE POSITION AND/OR THE MOVEMENT OF AT LEAST ONE OBJECT IN THE SURROUNDINGS OF A MOBILITY AID USING AT LEAST ONE ACOUSTIC PULSE

摘要

The invention relates to a method for determining the position and/or the movement of at least one object in the surroundings of a mobility aid using at least one acoustic pulse which is emitted and reflected on the object and which has a specified pulse duration, said reflected acoustic pulse being referred to as an echo pulse. The transit time of the echo pulse and also the position of the object are determined using the point in time at which the amplitude of the received echo pulse first exceeded and/or most recently exceeded at least one specified threshold and using the length of time for which the threshold was exceeded.