DEVICE AND METHOD FOR DETERMINING THE PRESENCE OR ABSENCE AND OPTIONALLY THE MOVEMENT OF AN OBJECT CONTAINED IN A HOUSING

摘要

A method of detecting the presence or absence of at least one object (9) in a housing (8) comprising: a) a first step during which a sensor (6) of the flight time type measures a first three-dimensional scene (S0) inside the housing (8) devoid of object; b) a second step during which the sensor (6) of the flight time type measures a second scene (S1) inside the housing (8); c) a comparison step during which said first scene (S0) is compared with the second scene (S1); and d) a step of determining the presence or absence of the object (9) in said housing (8), from the result of said comparison.