Patent ID: 11913928
Assignee: SOFTBANK CORP.
Field: Measurement (Instruments)
Classification: CPC G  A  Y | IPC G

Claim 6:
7. A carbon dioxide absorption amount estimation method, comprising:
obtaining a sensor ID, which is identification information for identifying a sensor terminal, a temperature of a field, solar radiation information regarding an amount of solar radiation emitted onto a field, temperature information regarding a temperature of the field, and humidity information regarding a humidity of the field;
determining a type of plants cultivated in the field based on the obtained sensor ID;
calculating vapor pressure deficit information of the field based on the temperature information and the humidity information;
calculating a temperature-based estimated value based on the temperature information by converting the temperature to temperature-CO2 absorption amount corresponding relationship data of the plant type, a solar radiation amount-based estimated value based on the solar radiation information by converting the solar radiation amount to the solar radiation amount-CO2 absorption amount corresponding relationship data of the plant type, and a vapor pressure deficit-based estimated value based on the vapor pressure deficit information by converting the vapor pressure deficit to the vapor pressure deficit-CO2 absorption amount corresponding relationship data of the plant type, which are estimated values of an absorption amount of carbon dioxide per unit time of the field; and
selecting a minimum value obtained by comparing the temperature-based estimated value, the solar radiation amount-based estimated value, and the vapor pressure deficit-based estimated value with each other as an estimated value of the absorption amount of carbon dioxide of the field.