Abstract: The present invention relates to a parachute release device comprising a data processing and acceleration determining means connected to said data processing system and provided for determining an acceleration parameter indicating the acceleration of a falling object to which the parachute is attached, said data processing system being provided for calculating from said acceleration parameter and a jump duration time an instant speed and an instant height value, and for generating a release signal for opening said parachute when said instant height value reaches an opening height value.