WORKER POSITION MEASUREMENT SYSTEM - MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP

Title:

WORKER POSITION MEASUREMENT SYSTEM

Document Type and Number:

WIPO Patent Application WO/2022/269769

Kind Code:

A1

Abstract:

Provided is a worker position measurement system that is unlikely to reduce the work efficiency of work in a building equipped with an elevator. A position measurement system (21) comprises a measurement unit (28), an estimation unit (30), a correction unit (31), and a calculation unit (32). The measurement unit (28) measures the height-direction position of a worker on the basis of a reference atmospheric pressure at the position of a reference atmospheric pressure measurement unit (22) and an atmospheric pressure of interest measured at the position of the worker. The estimation unit (30) estimates the height-direction position of the worker when an elevator (1) event is detected. The correction unit (31) converts the reference atmospheric pressure or atmospheric pressure of interest so as to correct an estimated altitude difference between the reference atmospheric pressure measurement unit (22) and the worker for the time when the height-direction position of the worker was estimated. The calculation unit (32) uses the difference between reference atmospheric pressure and atmospheric pressure of interest after the conversion by the correction unit (31) to calculate an offset value to be used by the measurement unit (28) to correct the reference atmospheric pressure or atmospheric pressure of interest.

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Inventors:

FUJITA TAKESHI (JP)
ABE MASAYA (JP)
OKASAKA SHO (JP)
KAKENO MASAHIRO (JP)
SAKATA KOJI (JP)

Application Number:

PCT/JP2021/023653

Publication Date:

December 29, 2022

Filing Date:

June 22, 2021

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP (JP)
MITSUBISHI ELECTRIC CORP (JP)

International Classes:

G01C5/06

Domestic Patent References:

WO2019069665A1	2019-04-11
WO2021001900A1	2021-01-07

Foreign References:

JP2015135303A	2015-07-27
JP2011117818A	2011-06-16
US20170225921A1	2017-08-10