Safety-critical persons determining device for restaurant and airport, has detectors arranged rotatably in plane around vertical axle in area, where one detector is arranged on ground level, so that detection cone detects area of shoes

摘要

The device has detectors (3, 4) arranged diagonally transverse to an area (1). The detectors are arranged rotatably in a plane around a vertical axle (6) in the area. One of the detectors is arranged on ground level (5), so that a detection cone of the detector detects an area of shoes. Another detector is arranged to a head height of a person (2), preferably above the person in the area, so that a detection cone of the detector detects head or shoulders of the person. The detectors are designed as explosive detectors.