Drop detection means, drop warning means and drop notification means

摘要

A fall detection means and a fall alarm capable of accurately and promptly detecting that an object moves in a stable posture without being inverted upside down when moving. It was made into the subject to provide a means and a fall notification means. When an object has a predetermined acceleration and the motion function of the object is functioning normally, the vertical direction is determined based only on the angular velocity value, and an abnormality occurs in the motion function of the object. When a free fall is detected in an object, the vertical direction based on the acceleration value is determined, the two vertical directions are weighted and added to determine the vertical direction during operation, and the free fall in the vertical direction during operation Is determined to have continued for a predetermined time, it is immediately determined that the object has started to fall. [Selection] Figure 4