Altitude information acquiring device and altitude information acquiring system

Abstract

Provided is an altitude information acquiring device including a measuring unit which measures atmospheric pressure; a wireless communication unit which performs near field communication with an external device; an altitude information acquiring unit which acquires altitude information from an external positioning device through the wireless communication unit; an inversion detecting unit which detects an inversion of a changing direction of the atmospheric pressure periodically measured by the measuring unit; a communication control unit which controls a timing to acquire the altitude information through the wireless communication unit at a set timing, based on the inversion detected by the inversion detecting unit; and an integrated altitude change acquiring unit which acquires a rise altitude integrated value obtained by integrating an amount of altitude change upon a rise and a fall altitude integrated value obtained by integrating an amount of altitude change upon a fall, based on the acquired altitude information.

Dependencies are inferred from the claim text.