Title:
温室屋根の積雪検知方法、装置、及び、これを用いた温室屋根の融雪方法、装置
Document Type and Number:
Japanese Patent JP6569607
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide means for detecting snow cover which enables snow melting with a low loss of snow melting energy by detecting the presence or absence of snow cover on a greenhouse roof inexpensively, accurately, and extensively.SOLUTION: In detecting snow cover of a greenhouse roof 14 in which temperature is managed by a heating device, the inner surface temperature (the surface temperature of a greenhouse side) of the greenhouse roof 14 is measured by a temperature sensor 40, and when the change of the inner surface temperature of the greenhouse roof 14 which is measured by the temperature sensor 40 is within a given threshold range including 0°C, it is detected that there is snow cover on the greenhouse roof 14. When the temperature sensor 40 is disposed at a plurality of positions and the number of the temperature sensors 40 indicating a value within the given threshold range is not less than a given number, it can be detected that there is snow cover.SELECTED DRAWING: Figure 7
Inventors:
Doi Makoto
Nobuo Takasu
Kennen Hayashi
Nobuo Takasu
Kennen Hayashi
Application Number:
JP2016125014A
Publication Date:
September 04, 2019
Filing Date:
June 23, 2016
Export Citation:
Assignee:
JFE Engineering Corporation
International Classes:
A01G9/14; E04H9/16
Domestic Patent References:
| JP2011195791A | ||||
| JP2000252509A | ||||
| JP2003221895A |
Foreign References:
| KR1020110041861A |
Attorney, Agent or Firm:
Patent business corporation mts international patent office
Satoshi Takaya
Keisuke Matsuyama
Tsuyoshi Makino
Takashi Fujita
Shuzo Sudo
Satoshi Takaya
Keisuke Matsuyama
Tsuyoshi Makino
Takashi Fujita
Shuzo Sudo