A method for determining a presence of people in the area around an object

The invention relates to a method for determining a presence of persons (20) in the area (16) around an object (10), in particular a vehicle and / or a robot, in which an influence of electromagnetic waves, which is a by at least exploiting Dende in the same area (16) of person (20) is effected, is detected by a receiving device (28). From a first transmitting device (24) and a second transmission means (26) are submitted, the electromagnetic waves by a boundary wall (12) of the object (10) into the area (16). Of the two transmission devices (24, 26) emitted electromagnetic waves are set to be largely wipe of the boundary wall (12) reflected portions of the electromagnetic waves, at least. The receiving device (28) detects a portion of the electromagnetic waves reflected from the at least one person (20) and through the boundary wall (12) of the object (10) through to the receiving means (28) passes.