Process of detection of a dive start in a dive computer

摘要

The present invention concerns a method for detecting the start of a dive for implementation in a portable electronic device ( 1 ) of the diving computer type. More specifically, the method is for implementation in a device of this type having at least a first operating mode and a second operating mode, called the dive mode. This device includes a pressure sensor ( 5 ) for measuring the ambient pressure value (P) and electronic circuits ( 2 ) for processing the pressure measurement results including a time base ( 4 ) and at least one memory zone ( 7, 8 ). The detection method according to the present invention more particularly proposes making correction to certain measured pressure values before storing them as reference pressure values (Pref). Thus, the start of a dive can be detected with a high level of reliability solely on the basis of ambient pressure measurements.