Title:
GAS APPLIANCE FLOW RATE ESTIMATION DEVICE AND GAS APPLIANCE FLOW RATE ESTIMATION METHOD
Document Type and Number:
Japanese Patent JP2022029474
Kind Code:
A
Abstract:
To provide a gas appliance flow rate estimation device capable of appropriately estimating a flow rate value of a gas appliance even when an actual flow rate of gas changes slowly.SOLUTION: A gas appliance flow rate estimation device 10 includes: a detection unit 11 that detects an actual flow rate of gas flowing toward a gas appliance 3; a slow flow rate calculation unit 12 that calculates a slow flow rate, which is a difference between the actual flow rate of the gas this time and a total flow rate value of the gas appliance previous time; a change flow rate calculation unit 13 that calculates a change flow rate that is a difference between the actual flow rate of the gas this time and an actual flow rate of the gas previous time; a flow rate determination unit 14 that determines whether or not the change flow rate calculated is equal to or higher than a predetermined flow rate; and an estimation unit 15 that uses a change flow rate as the flow rate value of a new gas appliance 3 if the change flow rate that exceeds the predetermined flow rate increases, and deletes the flow rate value closest to the value based on the change flow rate and the slow flow rate from all the stored flow rate values of the gas appliance 3 when the change flow rate that exceeds the predetermined flow rate decreases.SELECTED DRAWING: Figure 1
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Inventors:
KAMAKURA NOBUHITO
KOGAI KAZUFUMI
KOGAI KAZUFUMI
Application Number:
JP2020132740A
Publication Date:
February 18, 2022
Filing Date:
August 05, 2020
Export Citation:
Assignee:
AZBIL KIMMON CO LTD
International Classes:
G01F3/22
Attorney, Agent or Firm:
Sanno domestic and foreign patent office
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