Pneumatic altimeter and indoor corresponding type pneumatic altimeter

摘要

Provided is a barometric altimeter for computing a more accurate altitude or rank for indoor floor detection, especially in high-rise buildings. For this purpose, in the pneumatic altimeter (100), a plurality of barometric altitude conversion coefficients calculated in advance based on indoor air temperature according to the month and day and an arithmetic expression using these plural barometric altitude conversion coefficients are calculated as barometric altitudes And stored in the conversion coefficient storage section (2). In actual operation, the atmospheric pressure at a point to be measured is measured by the present atmospheric pressure measuring section (3) while measuring and storing the atmospheric pressure of a certain point as a reference atmospheric pressure by the reference atmospheric pressure measurement storage section (1) Using the processing result in the block, the altitude calculation unit (5) calculates the altitude by performing a predetermined calculation.