REFRIGERANT SHORTAGE PREDICTION APPARATUS, REFRIGERANT SHORTAGE PREDICTION METHOD, AND PROGRAM

Title:

REFRIGERANT SHORTAGE PREDICTION APPARATUS, REFRIGERANT SHORTAGE PREDICTION METHOD, AND PROGRAM

Document Type and Number:

WIPO Patent Application WO/2017/163294

Kind Code:

A1

Abstract:

A refrigerant shortage prediction apparatus according to the present invention has: a reception unit that receives a plurality of operation data including the outside air temperature, the operation frequency of the compressor of an air-conditioning cooling and heating device, the evaporation temperature or the condensing temperature of a heat exchanger, refrigerant shortage detection information, and a data collection date, and a refrigerant filling date, from a centralized monitoring apparatus that collects the operation data from the air-conditioning cooling and heating device via a network; an input unit that receives input data including predicted values of the outside air temperature, the operation frequency, and the evaporation temperature or the condensing temperature on a prediction date; an arithmetic unit that calculates an elapsed period after refrigerant filling for each operation data and an expected period after the refrigerant filling corresponding to the prediction date, groups a plurality of past data including the operation frequency, the outside air temperature, the evaporation temperature or the condensing temperature, and the elapsed period after the refrigerant filling by executing multi-variable analysis, and calculates a refrigerant shortage probability on the prediction date on the basis of the refrigerant shortage detection information about a group to which prediction data including the input data and the expected period after the refrigerant filling belongs; and a display unit that outputs the refrigerant shortage probability calculated by the arithmetic unit.

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Inventors:

OBANA HIROAKI (JP)
SATA HIROSHI (JP)
KIMURA NAOKI (JP)
TESHIMA TAKAHITO (JP)

Application Number:

PCT/JP2016/058884

Publication Date:

September 28, 2017

Filing Date:

March 22, 2016

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

F25B49/02; F25B45/00; H04Q9/00

Foreign References:

JP2008249234A	2008-10-16
JP2011028483A	2011-02-10
JPH0510657A	1993-01-19
JP2004113681A	2004-04-15
JP2007249388A	2007-09-27