Bag for e.g. children, has piezoelectric detector to detect presence and displacement of object at interior of bag, and light source and loudspeaker to indicate presence and displacement of object to person

摘要

The bag (1) has an electronic module (13) connected to a piezoelectric detector (23). The detector detects presence and displacement of an object at an interior of the bag. A light source (25) and a loudspeaker are placed at an exterior of the bag to indicate the presence and displacement of the object to a person situated at proximity of the bag.