Title:
METHOD FOR CONTROLLING TEMPERATURE OF VEGETATION GROUND
Document Type and Number:
Japanese Patent JP3515504
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for controlling the temperature of a vegetation ground, by which the temperature of the ground can highly accurately be controlled from a ground temperature control-starting time, even when the measured value of ground surface temperature is not given as a boundary condition.
SOLUTION: This method for controlling the temperature of the vegetation ground, characterized by disposing a weather datum-measuring apparatus comprising a heliograph, an outside air thermometer and an outside air hygrometer, disposing a memory for memorizing the weather data, performing a virtual heat transfer analysis on the basis of the historical measurement data memorized in the memory according to a time history ranged from a prescribed historical time to the present time, setting the determined ground surface layer region temperature at the present time as a temperature initial condition, hereafter performing heat transfer analyses on the weather data measured with the weather datum-measuring apparatus comprising the heliograph, the outside air thermometer and the outside air hygrometer, thus determining a ground surface layer region temperature in which an underground thermometer is not buried, and controlling a heat medium supplied to a pipe under the consideration of the heat conductivity of the ground, while using the underground temperature of the ground surface layer region as a target ground temperature.
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Inventors:
Orimo, Toshiyasu
Kaneko, Noriyoshi
Kuroda, Chitose
Ishibashi, Minoru
Kaneko, Noriyoshi
Kuroda, Chitose
Ishibashi, Minoru
Application Number:
JP2000281728A
Publication Date:
April 05, 2004
Filing Date:
September 18, 2000
Export Citation:
Assignee:
SATO KOGYO CO LTD
International Classes:
A01G7/00; A01G1/00; A01G9/20; A63C19/00; (IPC1-7): A01G7/00; A01G1/00; A01G9/20; A63C19/00
Attorney, Agent or Firm:
和泉 久志