Title:
HOT WATER SYSTEM
Document Type and Number:
Japanese Patent JP2021196113
Kind Code:
A
Abstract:
To increase the counting accuracy of the number of bathers using a detection value of a bathtub water level sensor.SOLUTION: A controller 12 counts the number of bathers after the end of hot water filling operation by a hot water system 100 for a bathtub 20 until water drain of the bathtub 20 is detected, based on the detected value by a water level sensor 11 for detecting a water level in the bathtub 20. After the end of hot water filling operation until water drain is detected, bathing is detected according to rise of bathtub water level detected by the water level sensor 11 and the number of bathers is incremented, and leaving from the bathtub is detected according to drop of bathtub water level after the detection of bathing. Furthermore, the controller 12 provides a count inhibit period in which the number of bathers is not incremented even if bathing is detected, until a predetermined time from the detection of leaving the bathtub is elapsed.SELECTED DRAWING: Figure 1
Inventors:
MIYAMOTO SHOGO
NAKAMURA YUSUKE
IWASAWA NAOTO
SHIMIZU SHIRO
NAKAMURA YUSUKE
IWASAWA NAOTO
SHIMIZU SHIRO
Application Number:
JP2020103119A
Publication Date:
December 27, 2021
Filing Date:
June 15, 2020
Export Citation:
Assignee:
NORITZ CORP
International Classes:
F24H1/00
Attorney, Agent or Firm:
Fukami patent office
Previous Patent: Oil removal filter
Next Patent: Refrigeration machinery for transportation and transportation machinery
Next Patent: Refrigeration machinery for transportation and transportation machinery