Patent ID: 7627446
Filing Date: 2009-12-01
Classification: B63C,G01D,G04G

Abstract:
1. A diving information processing device comprising: a pressure measuring unit for measuring ambient pressure; a timekeeping unit for measuring elapsed time; a water entry detection unit for detecting an in-water condition; a diving evaluation unit for determining that a diver is diving when an in-water condition is detected and the water depth corresponding to the pressure measured by the pressure measuring unit is deeper than a predetermined diving evaluation depth; a depth measuring unit for measuring the water depth corresponding to the pressure measured by the pressure measuring unit during a dive; a depth recording unit for recording the water depth and the elapsed time; a low pressure region evaluation unit for determining movement in a low pressure region where the pressure is lower than a predetermined atmospheric reference pressure based on water entry detection by the water entry detection unit and the pressure measured by the pressure measuring unit; and a depth measuring cancellation unit for cancelling depth measurement by the depth measuring unit when travel in a low pressure region is detected.